[PATCH] OMAP2/3: update default defconfig, towards smaller kernel

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* [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
@ 2010-01-30  0:26 Kevin Hilman
  2010-01-30  2:01 ` Nishanth Menon
                   ` (4 more replies)
  0 siblings, 5 replies; 12+ messages in thread
From: Kevin Hilman @ 2010-01-30  0:26 UTC (permalink / raw)
  To: linux-omap

Update omap3_defconfig to work towards a minimal kernel by building
most things as modules.  Some drivers that cannot currently be built
as modules and need to be fixed:

- MMC: platform code uses MMC core regulator functions directly
- ASoC: drivers call omap_ctrl_[read|write] directly

In addition some additional changes:

- use new SLUB allocator instead of SLAB (increased debugability)
- compile with PREEMPT enabled by default
- disable OABI_COMPAT.  We should not pretend to support this IMHO
- disable CPUfreq: not yet supported in mainline
- disable PM_DEBUG_VERBOSE
- enable fb/DSS2 as modules
- disable Kprobes

zImage size comparison
before: 3160272
after:  2610108

Some ideas for reducing this further:
- fix MMC and ASoC, then build those as modules
- disable all the kernel debug features
- convert MTD and all flash fs to modules

Then, we should have platform specific initramfs configs so rootfs
from flash, MMC, etc. could be done using modules in initramfs.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
---
 arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++------------------
 1 files changed, 112 insertions(+), 103 deletions(-)

diff --git a/arch/arm/configs/omap3_defconfig b/arch/arm/configs/omap3_defconfig
index 2bc80d7..247f191 100644
--- a/arch/arm/configs/omap3_defconfig
+++ b/arch/arm/configs/omap3_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.33-rc5
-# Tue Jan 26 11:05:31 2010
+# Fri Jan 29 16:02:40 2010
 #
 CONFIG_ARM=y
 CONFIG_SYS_SUPPORTS_APM_EMULATION=y
@@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
 #
 CONFIG_EXPERIMENTAL=y
 CONFIG_BROKEN_ON_SMP=y
+CONFIG_LOCK_KERNEL=y
 CONFIG_INIT_ENV_ARG_LIMIT=32
 CONFIG_LOCALVERSION=""
 CONFIG_LOCALVERSION_AUTO=y
@@ -105,16 +106,16 @@ CONFIG_AIO=y
 # Kernel Performance Events And Counters
 #
 CONFIG_VM_EVENT_COUNTERS=y
+# CONFIG_SLUB_DEBUG is not set
 CONFIG_COMPAT_BRK=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
 # CONFIG_SLOB is not set
 CONFIG_PROFILING=y
 CONFIG_TRACEPOINTS=y
-CONFIG_OPROFILE=y
+CONFIG_OPROFILE=m
 CONFIG_HAVE_OPROFILE=y
-CONFIG_KPROBES=y
-CONFIG_KRETPROBES=y
+# CONFIG_KPROBES is not set
 CONFIG_HAVE_KPROBES=y
 CONFIG_HAVE_KRETPROBES=y
 CONFIG_HAVE_CLK=y
@@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
 # CONFIG_GCOV_KERNEL is not set
 # CONFIG_SLOW_WORK is not set
 CONFIG_HAVE_GENERIC_DMA_COHERENT=y
-CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 CONFIG_BASE_SMALL=0
 CONFIG_MODULES=y
@@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
 CONFIG_OMAP_MUX_DEBUG=y
 CONFIG_OMAP_MUX_WARNINGS=y
 CONFIG_OMAP_MCBSP=y
-# CONFIG_OMAP_MBOX_FWK is not set
+CONFIG_OMAP_MBOX_FWK=m
 # CONFIG_OMAP_MPU_TIMER is not set
 CONFIG_OMAP_32K_TIMER=y
 CONFIG_OMAP_32K_TIMER_HZ=128
@@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
 # CONFIG_VMSPLIT_2G is not set
 # CONFIG_VMSPLIT_1G is not set
 CONFIG_PAGE_OFFSET=0xC0000000
-CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_NONE is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
-# CONFIG_PREEMPT is not set
+CONFIG_PREEMPT=y
 CONFIG_HZ=128
 # CONFIG_THUMB2_KERNEL is not set
 CONFIG_AEABI=y
-CONFIG_OABI_COMPAT=y
+# CONFIG_OABI_COMPAT is not set
+CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
 # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
 # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
 # CONFIG_HIGHMEM is not set
@@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
 #
 # CPU Power Management
 #
-CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_TABLE=y
-# CONFIG_CPU_FREQ_DEBUG is not set
-CONFIG_CPU_FREQ_STAT=y
-CONFIG_CPU_FREQ_STAT_DETAILS=y
-CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
 # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
 # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
 # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
 # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
-CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
-# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
-CONFIG_CPU_FREQ_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_GOV_ONDEMAND=y
-# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
 # CONFIG_CPU_IDLE is not set
 
 #
@@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
 #
 CONFIG_PM=y
 CONFIG_PM_DEBUG=y
-CONFIG_PM_VERBOSE=y
+# CONFIG_PM_VERBOSE is not set
 CONFIG_CAN_PM_TRACE=y
 CONFIG_PM_SLEEP=y
 CONFIG_SUSPEND=y
-# CONFIG_PM_TEST_SUSPEND is not set
 CONFIG_SUSPEND_FREEZER=y
 # CONFIG_APM_EMULATION is not set
 # CONFIG_PM_RUNTIME is not set
@@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
 # Network testing
 #
 # CONFIG_NET_PKTGEN is not set
-# CONFIG_NET_TCPPROBE is not set
 # CONFIG_NET_DROP_MONITOR is not set
 # CONFIG_HAMRADIO is not set
 # CONFIG_CAN is not set
 # CONFIG_IRDA is not set
-CONFIG_BT=y
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
-CONFIG_BT_RFCOMM=y
+CONFIG_BT=m
+CONFIG_BT_L2CAP=m
+CONFIG_BT_SCO=m
+CONFIG_BT_RFCOMM=m
 CONFIG_BT_RFCOMM_TTY=y
-CONFIG_BT_BNEP=y
+CONFIG_BT_BNEP=m
 CONFIG_BT_BNEP_MC_FILTER=y
 CONFIG_BT_BNEP_PROTO_FILTER=y
-CONFIG_BT_HIDP=y
+CONFIG_BT_HIDP=m
 
 #
 # Bluetooth device drivers
 #
 # CONFIG_BT_HCIBTUSB is not set
 # CONFIG_BT_HCIBTSDIO is not set
-CONFIG_BT_HCIUART=y
+CONFIG_BT_HCIUART=m
 CONFIG_BT_HCIUART_H4=y
 CONFIG_BT_HCIUART_BCSP=y
 CONFIG_BT_HCIUART_LL=y
-CONFIG_BT_HCIBCM203X=y
-CONFIG_BT_HCIBPA10X=y
+CONFIG_BT_HCIBCM203X=m
+CONFIG_BT_HCIBPA10X=m
 # CONFIG_BT_HCIBFUSB is not set
 # CONFIG_BT_HCIVHCI is not set
 # CONFIG_BT_MRVL is not set
@@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
 # CONFIG_MTD_COMPLEX_MAPPINGS is not set
 # CONFIG_MTD_PHYSMAP is not set
 # CONFIG_MTD_ARM_INTEGRATOR is not set
-CONFIG_MTD_OMAP_NOR=y
 # CONFIG_MTD_PLATRAM is not set
 
 #
@@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
 # SCSI device support
 #
 # CONFIG_RAID_ATTRS is not set
-CONFIG_SCSI=y
+CONFIG_SCSI=m
 CONFIG_SCSI_DMA=y
 # CONFIG_SCSI_TGT is not set
 # CONFIG_SCSI_NETLINK is not set
@@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
 #
 # SCSI support type (disk, tape, CD-ROM)
 #
-CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SD=m
 # CONFIG_CHR_DEV_ST is not set
 # CONFIG_CHR_DEV_OSST is not set
 # CONFIG_BLK_DEV_SR is not set
@@ -844,7 +833,7 @@ CONFIG_SMC91X=y
 # CONFIG_DM9000 is not set
 # CONFIG_ENC28J60 is not set
 # CONFIG_ETHOC is not set
-# CONFIG_SMC911X is not set
+CONFIG_SMC911X=y
 CONFIG_SMSC911X=y
 # CONFIG_DNET is not set
 # CONFIG_IBM_NEW_EMAC_ZMII is not set
@@ -872,9 +861,9 @@ CONFIG_WLAN=y
 # CONFIG_B43LEGACY is not set
 # CONFIG_HOSTAP is not set
 # CONFIG_IWM is not set
-CONFIG_LIBERTAS=y
-CONFIG_LIBERTAS_USB=y
-CONFIG_LIBERTAS_SDIO=y
+CONFIG_LIBERTAS=m
+CONFIG_LIBERTAS_USB=m
+CONFIG_LIBERTAS_SDIO=m
 # CONFIG_LIBERTAS_SPI is not set
 CONFIG_LIBERTAS_DEBUG=y
 # CONFIG_P54_COMMON is not set
@@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
 # CONFIG_USB_KAWETH is not set
 # CONFIG_USB_PEGASUS is not set
 # CONFIG_USB_RTL8150 is not set
-CONFIG_USB_USBNET=y
-CONFIG_USB_NET_AX8817X=y
-CONFIG_USB_NET_CDCETHER=y
+CONFIG_USB_USBNET=m
+CONFIG_USB_NET_AX8817X=m
+CONFIG_USB_NET_CDCETHER=m
 # CONFIG_USB_NET_CDC_EEM is not set
 # CONFIG_USB_NET_DM9601 is not set
 # CONFIG_USB_NET_SMSC95XX is not set
 # CONFIG_USB_NET_GL620A is not set
-CONFIG_USB_NET_NET1080=y
+CONFIG_USB_NET_NET1080=m
 # CONFIG_USB_NET_PLUSB is not set
 # CONFIG_USB_NET_MCS7830 is not set
 # CONFIG_USB_NET_RNDIS_HOST is not set
-CONFIG_USB_NET_CDC_SUBSET=y
+CONFIG_USB_NET_CDC_SUBSET=m
 CONFIG_USB_ALI_M5632=y
 CONFIG_USB_AN2720=y
 CONFIG_USB_BELKIN=y
 CONFIG_USB_ARMLINUX=y
 CONFIG_USB_EPSON2888=y
 CONFIG_USB_KC2190=y
-CONFIG_USB_NET_ZAURUS=y
+CONFIG_USB_NET_ZAURUS=m
 # CONFIG_USB_NET_INT51X1 is not set
 # CONFIG_WAN is not set
 # CONFIG_PPP is not set
@@ -933,11 +922,11 @@ CONFIG_INPUT=y
 #
 # Userland interfaces
 #
-CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_MOUSEDEV=m
 CONFIG_INPUT_MOUSEDEV_PSAUX=y
 CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
 CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
-CONFIG_INPUT_JOYDEV=y
+CONFIG_INPUT_JOYDEV=m
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_EVBUG is not set
 
@@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
 CONFIG_KEYBOARD_TWL4030=y
 # CONFIG_KEYBOARD_XTKBD is not set
 CONFIG_INPUT_MOUSE=y
-CONFIG_MOUSE_PS2=y
+CONFIG_MOUSE_PS2=m
 CONFIG_MOUSE_PS2_ALPS=y
 CONFIG_MOUSE_PS2_LOGIPS2PP=y
 CONFIG_MOUSE_PS2_SYNAPTICS=y
@@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
 # CONFIG_INPUT_JOYSTICK is not set
 # CONFIG_INPUT_TABLET is not set
 CONFIG_INPUT_TOUCHSCREEN=y
-CONFIG_TOUCHSCREEN_ADS7846=y
+CONFIG_TOUCHSCREEN_ADS7846=m
 # CONFIG_TOUCHSCREEN_AD7877 is not set
 # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
 # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
@@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
 #
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_NR_UARTS=4
 CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
@@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_IPMI_HANDLER is not set
-CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM=m
 # CONFIG_HW_RANDOM_TIMERIOMEM is not set
-CONFIG_HW_RANDOM_OMAP=y
+CONFIG_HW_RANDOM_OMAP=m
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
@@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
 #
 # CONFIG_SPI_BITBANG is not set
 # CONFIG_SPI_GPIO is not set
-CONFIG_SPI_OMAP24XX=y
+CONFIG_SPI_OMAP24XX=m
 # CONFIG_SPI_XILINX is not set
 # CONFIG_SPI_DESIGNWARE is not set
 
@@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
 #
 # AC97 GPIO expanders:
 #
-CONFIG_W1=y
+CONFIG_W1=m
 CONFIG_W1_CON=y
 
 #
@@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
 # CONFIG_W1_SLAVE_DS2433 is not set
 # CONFIG_W1_SLAVE_DS2760 is not set
 # CONFIG_W1_SLAVE_BQ27000 is not set
-CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_SUPPLY=m
 # CONFIG_POWER_SUPPLY_DEBUG is not set
 # CONFIG_PDA_POWER is not set
 # CONFIG_BATTERY_DS2760 is not set
 # CONFIG_BATTERY_DS2782 is not set
 # CONFIG_BATTERY_BQ27x00 is not set
 # CONFIG_BATTERY_MAX17040 is not set
-CONFIG_HWMON=y
+CONFIG_HWMON=m
 # CONFIG_HWMON_VID is not set
 # CONFIG_HWMON_DEBUG_CHIP is not set
 
@@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
 # Watchdog Device Drivers
 #
 # CONFIG_SOFT_WATCHDOG is not set
-CONFIG_OMAP_WATCHDOG=y
-CONFIG_TWL4030_WATCHDOG=y
+CONFIG_OMAP_WATCHDOG=m
+CONFIG_TWL4030_WATCHDOG=m
 
 #
 # USB-based Watchdog Cards
@@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
 # CONFIG_TPS65010 is not set
 # CONFIG_MENELAUS is not set
 CONFIG_TWL4030_CORE=y
-# CONFIG_TWL4030_POWER is not set
+CONFIG_TWL4030_POWER=y
 CONFIG_TWL4030_CODEC=y
 # CONFIG_MFD_TMIO is not set
 # CONFIG_MFD_T7L66XB is not set
@@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
 #
 # CONFIG_VGASTATE is not set
 # CONFIG_VIDEO_OUTPUT_CONTROL is not set
-CONFIG_FB=y
+CONFIG_FB=m
 CONFIG_FIRMWARE_EDID=y
 # CONFIG_FB_DDC is not set
 # CONFIG_FB_BOOT_VESA_SUPPORT is not set
-CONFIG_FB_CFB_FILLRECT=y
-CONFIG_FB_CFB_COPYAREA=y
-CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_CFB_FILLRECT=m
+CONFIG_FB_CFB_COPYAREA=m
+CONFIG_FB_CFB_IMAGEBLIT=m
 # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
 # CONFIG_FB_SYS_FILLRECT is not set
 # CONFIG_FB_SYS_COPYAREA is not set
@@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
 # CONFIG_FB_METRONOME is not set
 # CONFIG_FB_MB862XX is not set
 # CONFIG_FB_BROADSHEET is not set
-CONFIG_FB_OMAP=y
 CONFIG_FB_OMAP_LCD_VGA=y
-# CONFIG_FB_OMAP_031M3R is not set
-# CONFIG_FB_OMAP_048M3R is not set
-CONFIG_FB_OMAP_079M3R=y
-# CONFIG_FB_OMAP_092M9R is not set
-# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
-# CONFIG_FB_OMAP_LCD_MIPID is not set
 # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
-CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
-# CONFIG_OMAP2_DSS is not set
+CONFIG_OMAP2_VRAM=y
+CONFIG_OMAP2_VRFB=y
+CONFIG_OMAP2_DSS=m
+CONFIG_OMAP2_VRAM_SIZE=4
+CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
+# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
+# CONFIG_OMAP2_DSS_RFBI is not set
+CONFIG_OMAP2_DSS_VENC=y
+# CONFIG_OMAP2_DSS_SDI is not set
+# CONFIG_OMAP2_DSS_DSI is not set
+# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
+CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
+CONFIG_FB_OMAP2=m
+CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
+# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
+CONFIG_FB_OMAP2_NUM_FBS=3
+
+#
+# OMAP2/3 Display Device Drivers
+#
+CONFIG_PANEL_GENERIC=m
+CONFIG_PANEL_SHARP_LS037V7DW01=m
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
-CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_CLASS_DEVICE=m
 # CONFIG_LCD_LMS283GF05 is not set
 # CONFIG_LCD_LTV350QV is not set
 # CONFIG_LCD_ILI9320 is not set
 # CONFIG_LCD_TDO24M is not set
 # CONFIG_LCD_VGG2432A4 is not set
-CONFIG_LCD_PLATFORM=y
+CONFIG_LCD_PLATFORM=m
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_GENERIC=y
 
@@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
 #
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_DUMMY_CONSOLE=y
-CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=m
 # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_FONTS=y
@@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
 CONFIG_SND=y
 CONFIG_SND_TIMER=y
 CONFIG_SND_PCM=y
-CONFIG_SND_HWDEP=y
-CONFIG_SND_RAWMIDI=y
+CONFIG_SND_HWDEP=m
+CONFIG_SND_RAWMIDI=m
 CONFIG_SND_JACK=y
 # CONFIG_SND_SEQUENCER is not set
 CONFIG_SND_OSSEMUL=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
 CONFIG_SND_PCM_OSS_PLUGINS=y
 # CONFIG_SND_HRTIMER is not set
 # CONFIG_SND_DYNAMIC_MINORS is not set
@@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
 CONFIG_SND_ARM=y
 CONFIG_SND_SPI=y
 CONFIG_SND_USB=y
-CONFIG_SND_USB_AUDIO=y
+CONFIG_SND_USB_AUDIO=m
 # CONFIG_SND_USB_CAIAQ is not set
 CONFIG_SND_SOC=y
 CONFIG_SND_OMAP_SOC=y
@@ -1468,11 +1470,17 @@ CONFIG_HID=y
 #
 # USB Input Devices
 #
-CONFIG_USB_HID=y
+CONFIG_USB_HID=m
 # CONFIG_HID_PID is not set
 # CONFIG_USB_HIDDEV is not set
 
 #
+# USB HID Boot Protocol drivers
+#
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_MOUSE is not set
+
+#
 # Special HID drivers
 #
 # CONFIG_HID_A4TECH is not set
@@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
 CONFIG_USB_ARCH_HAS_HCD=y
 CONFIG_USB_ARCH_HAS_OHCI=y
 CONFIG_USB_ARCH_HAS_EHCI=y
-CONFIG_USB=y
+CONFIG_USB=m
 CONFIG_USB_DEBUG=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 
@@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
 CONFIG_USB_OTG=y
 # CONFIG_USB_OTG_WHITELIST is not set
 # CONFIG_USB_OTG_BLACKLIST_HUB is not set
-CONFIG_USB_MON=y
+CONFIG_USB_MON=m
 # CONFIG_USB_WUSB is not set
 # CONFIG_USB_WUSB_CBAF is not set
 
@@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
 # CONFIG_USB_SL811_HCD is not set
 # CONFIG_USB_R8A66597_HCD is not set
 # CONFIG_USB_HWA_HCD is not set
-CONFIG_USB_MUSB_HDRC=y
+CONFIG_USB_MUSB_HDRC=m
 CONFIG_USB_MUSB_SOC=y
 
 #
@@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
 #
 # CONFIG_USB_ACM is not set
 # CONFIG_USB_PRINTER is not set
-CONFIG_USB_WDM=y
+CONFIG_USB_WDM=m
 # CONFIG_USB_TMC is not set
 
 #
@@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
 #
 # also be needed; see USB_STORAGE Help for more info
 #
-CONFIG_USB_STORAGE=y
+CONFIG_USB_STORAGE=m
 # CONFIG_USB_STORAGE_DEBUG is not set
 # CONFIG_USB_STORAGE_DATAFAB is not set
 # CONFIG_USB_STORAGE_FREECOM is not set
@@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
 # CONFIG_USB_LD is not set
 # CONFIG_USB_TRANCEVIBRATOR is not set
 # CONFIG_USB_IOWARRIOR is not set
-CONFIG_USB_TEST=y
+CONFIG_USB_TEST=m
 # CONFIG_USB_ISIGHTFW is not set
 # CONFIG_USB_VST is not set
-CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET=m
 CONFIG_USB_GADGET_DEBUG=y
 CONFIG_USB_GADGET_DEBUG_FILES=y
 CONFIG_USB_GADGET_DEBUG_FS=y
@@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
 # CONFIG_USB_GPIO_VBUS is not set
 # CONFIG_ISP1301_OMAP is not set
 # CONFIG_USB_ULPI is not set
-CONFIG_TWL4030_USB=y
-CONFIG_NOP_USB_XCEIV=y
+CONFIG_TWL4030_USB=m
+CONFIG_NOP_USB_XCEIV=m
 CONFIG_MMC=y
 # CONFIG_MMC_DEBUG is not set
 CONFIG_MMC_UNSAFE_RESUME=y
@@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
 #
 # MMC/SD/SDIO Card Drivers
 #
-CONFIG_MMC_BLOCK=y
+CONFIG_MMC_BLOCK=m
 CONFIG_MMC_BLOCK_BOUNCE=y
-CONFIG_SDIO_UART=y
+CONFIG_SDIO_UART=m
 # CONFIG_MMC_TEST is not set
 
 #
@@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
 #
 # CONFIG_MMC_SDHCI is not set
 # CONFIG_MMC_OMAP is not set
-CONFIG_MMC_OMAP_HS=y
+CONFIG_MMC_OMAP_HS=m
 # CONFIG_MMC_AT91 is not set
 # CONFIG_MMC_ATMELMCI is not set
 # CONFIG_MMC_SPI is not set
@@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 #
 # CONFIG_ACCESSIBILITY is not set
 CONFIG_RTC_LIB=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_HCTOSYS=y
-CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
-# CONFIG_RTC_DEBUG is not set
+CONFIG_RTC_CLASS=m
 
 #
 # RTC interfaces
@@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
 # CONFIG_RTC_DRV_PCF8583 is not set
 # CONFIG_RTC_DRV_M41T80 is not set
 # CONFIG_RTC_DRV_BQ32K is not set
-CONFIG_RTC_DRV_TWL4030=y
+CONFIG_RTC_DRV_TWL4030=m
 # CONFIG_RTC_DRV_S35390A is not set
 # CONFIG_RTC_DRV_FM3130 is not set
 # CONFIG_RTC_DRV_RX8581 is not set
@@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
 # CONFIG_STAGING is not set
 
 #
+# CBUS support
+#
+# CONFIG_CBUS is not set
+
+#
 # File systems
 #
 CONFIG_EXT2_FS=y
@@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
 CONFIG_SCHEDSTATS=y
 CONFIG_TIMER_STATS=y
 # CONFIG_DEBUG_OBJECTS is not set
-# CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_KMEMLEAK is not set
+CONFIG_DEBUG_PREEMPT=y
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 CONFIG_DEBUG_SPINLOCK=y
@@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
 # CONFIG_BOOT_PRINTK_DELAY is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
-# CONFIG_KPROBES_SANITY_TEST is not set
 # CONFIG_BACKTRACE_SELF_TEST is not set
 # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
 # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
-# CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
 # CONFIG_SYSCTL_SYSCALL_CHECK is not set
@@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
 CONFIG_FTRACE=y
 # CONFIG_FUNCTION_TRACER is not set
 # CONFIG_IRQSOFF_TRACER is not set
+# CONFIG_PREEMPT_TRACER is not set
 # CONFIG_SCHED_TRACER is not set
 # CONFIG_ENABLE_DEFAULT_TRACERS is not set
 # CONFIG_BOOT_TRACER is not set
-- 
1.6.6


^ permalink raw reply related	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
@ 2010-01-30  2:01 ` Nishanth Menon
  2010-01-30 10:25   ` Koen Kooi
  2010-02-01 17:32   ` Kevin Hilman
  2010-02-01 16:09 ` Madhusudhan
                   ` (3 subsequent siblings)
  4 siblings, 2 replies; 12+ messages in thread
From: Nishanth Menon @ 2010-01-30  2:01 UTC (permalink / raw)
  To: Kevin Hilman; +Cc: linux-omap@vger.kernel.org

Kevin Hilman had written, on 01/29/2010 06:26 PM, the following:
> Update omap3_defconfig to work towards a minimal kernel by building
> most things as modules.  Some drivers that cannot currently be built
> as modules and need to be fixed:
> 
> - MMC: platform code uses MMC core regulator functions directly
> - ASoC: drivers call omap_ctrl_[read|write] directly
> 
> In addition some additional changes:
> 
> - use new SLUB allocator instead of SLAB (increased debugability)
> - compile with PREEMPT enabled by default
> - disable OABI_COMPAT.  We should not pretend to support this IMHO
Curious: Does'nt most of busybox build's fail to boot without this?

> - disable CPUfreq: not yet supported in mainline
> - disable PM_DEBUG_VERBOSE
> - enable fb/DSS2 as modules
> - disable Kprobes
> 
> zImage size comparison
> before: 3160272
> after:  2610108
> 
> Some ideas for reducing this further:
> - fix MMC and ASoC, then build those as modules
> - disable all the kernel debug features
> - convert MTD and all flash fs to modules
> 
> Then, we should have platform specific initramfs configs so rootfs
> from flash, MMC, etc. could be done using modules in initramfs.
How would we boot a system such as beagleboard new generation which may 
only have MMC from defconfig?

hmm.. we could in theory get u-boot to load up an initial intramfs with 
modules, use that to mount a final filesystem etc.. but it is going to 
be a big pain if we were to do it.. IMHO, having flash, MMC, network 
will ease for developers to send quick tested solutions to us. Now, not 
that I am saying that the idea is bad - it is just a matter of trouble 
we might cause- how about a omap3_tiny_defconfig?

> 
> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
> ---
>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++------------------
>  1 files changed, 112 insertions(+), 103 deletions(-)
> 
> diff --git a/arch/arm/configs/omap3_defconfig b/arch/arm/configs/omap3_defconfig
> index 2bc80d7..247f191 100644
> --- a/arch/arm/configs/omap3_defconfig
> +++ b/arch/arm/configs/omap3_defconfig
> @@ -1,7 +1,7 @@
>  #
>  # Automatically generated make config: don't edit
>  # Linux kernel version: 2.6.33-rc5
> -# Tue Jan 26 11:05:31 2010
> +# Fri Jan 29 16:02:40 2010
>  #
>  CONFIG_ARM=y
>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>  #
>  CONFIG_EXPERIMENTAL=y
>  CONFIG_BROKEN_ON_SMP=y
> +CONFIG_LOCK_KERNEL=y
>  CONFIG_INIT_ENV_ARG_LIMIT=32
>  CONFIG_LOCALVERSION=""
>  CONFIG_LOCALVERSION_AUTO=y
> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>  # Kernel Performance Events And Counters
>  #
>  CONFIG_VM_EVENT_COUNTERS=y
> +# CONFIG_SLUB_DEBUG is not set
>  CONFIG_COMPAT_BRK=y
> -CONFIG_SLAB=y
> -# CONFIG_SLUB is not set
> +# CONFIG_SLAB is not set
> +CONFIG_SLUB=y
>  # CONFIG_SLOB is not set
>  CONFIG_PROFILING=y
>  CONFIG_TRACEPOINTS=y
> -CONFIG_OPROFILE=y
> +CONFIG_OPROFILE=m
>  CONFIG_HAVE_OPROFILE=y
> -CONFIG_KPROBES=y
> -CONFIG_KRETPROBES=y
> +# CONFIG_KPROBES is not set
>  CONFIG_HAVE_KPROBES=y
>  CONFIG_HAVE_KRETPROBES=y
>  CONFIG_HAVE_CLK=y
> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>  # CONFIG_GCOV_KERNEL is not set
>  # CONFIG_SLOW_WORK is not set
>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
> -CONFIG_SLABINFO=y
>  CONFIG_RT_MUTEXES=y
>  CONFIG_BASE_SMALL=0
>  CONFIG_MODULES=y
> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>  CONFIG_OMAP_MUX_DEBUG=y
>  CONFIG_OMAP_MUX_WARNINGS=y
>  CONFIG_OMAP_MCBSP=y
> -# CONFIG_OMAP_MBOX_FWK is not set
> +CONFIG_OMAP_MBOX_FWK=m
>  # CONFIG_OMAP_MPU_TIMER is not set
>  CONFIG_OMAP_32K_TIMER=y
>  CONFIG_OMAP_32K_TIMER_HZ=128
> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>  # CONFIG_VMSPLIT_2G is not set
>  # CONFIG_VMSPLIT_1G is not set
>  CONFIG_PAGE_OFFSET=0xC0000000
> -CONFIG_PREEMPT_NONE=y
> +# CONFIG_PREEMPT_NONE is not set
>  # CONFIG_PREEMPT_VOLUNTARY is not set
> -# CONFIG_PREEMPT is not set
> +CONFIG_PREEMPT=y
>  CONFIG_HZ=128
>  # CONFIG_THUMB2_KERNEL is not set
>  CONFIG_AEABI=y
> -CONFIG_OABI_COMPAT=y
> +# CONFIG_OABI_COMPAT is not set
> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>  # CONFIG_HIGHMEM is not set
> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>  #
>  # CPU Power Management
>  #
> -CONFIG_CPU_FREQ=y
> -CONFIG_CPU_FREQ_TABLE=y
> -# CONFIG_CPU_FREQ_DEBUG is not set
> -CONFIG_CPU_FREQ_STAT=y
> -CONFIG_CPU_FREQ_STAT_DETAILS=y
> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
> +# CONFIG_CPU_FREQ is not set
> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>  # CONFIG_CPU_IDLE is not set
> 
>  #
> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>  #
>  CONFIG_PM=y
>  CONFIG_PM_DEBUG=y
> -CONFIG_PM_VERBOSE=y
> +# CONFIG_PM_VERBOSE is not set
>  CONFIG_CAN_PM_TRACE=y
>  CONFIG_PM_SLEEP=y
>  CONFIG_SUSPEND=y
> -# CONFIG_PM_TEST_SUSPEND is not set
>  CONFIG_SUSPEND_FREEZER=y
>  # CONFIG_APM_EMULATION is not set
>  # CONFIG_PM_RUNTIME is not set
> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>  # Network testing
>  #
>  # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_TCPPROBE is not set
>  # CONFIG_NET_DROP_MONITOR is not set
>  # CONFIG_HAMRADIO is not set
>  # CONFIG_CAN is not set
>  # CONFIG_IRDA is not set
> -CONFIG_BT=y
> -CONFIG_BT_L2CAP=y
> -CONFIG_BT_SCO=y
> -CONFIG_BT_RFCOMM=y
> +CONFIG_BT=m
> +CONFIG_BT_L2CAP=m
> +CONFIG_BT_SCO=m
> +CONFIG_BT_RFCOMM=m
>  CONFIG_BT_RFCOMM_TTY=y
> -CONFIG_BT_BNEP=y
> +CONFIG_BT_BNEP=m
>  CONFIG_BT_BNEP_MC_FILTER=y
>  CONFIG_BT_BNEP_PROTO_FILTER=y
> -CONFIG_BT_HIDP=y
> +CONFIG_BT_HIDP=m
> 
>  #
>  # Bluetooth device drivers
>  #
>  # CONFIG_BT_HCIBTUSB is not set
>  # CONFIG_BT_HCIBTSDIO is not set
> -CONFIG_BT_HCIUART=y
> +CONFIG_BT_HCIUART=m
>  CONFIG_BT_HCIUART_H4=y
>  CONFIG_BT_HCIUART_BCSP=y
>  CONFIG_BT_HCIUART_LL=y
> -CONFIG_BT_HCIBCM203X=y
> -CONFIG_BT_HCIBPA10X=y
> +CONFIG_BT_HCIBCM203X=m
> +CONFIG_BT_HCIBPA10X=m
>  # CONFIG_BT_HCIBFUSB is not set
>  # CONFIG_BT_HCIVHCI is not set
>  # CONFIG_BT_MRVL is not set
> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>  # CONFIG_MTD_PHYSMAP is not set
>  # CONFIG_MTD_ARM_INTEGRATOR is not set
> -CONFIG_MTD_OMAP_NOR=y
>  # CONFIG_MTD_PLATRAM is not set
> 
>  #
> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>  # SCSI device support
>  #
>  # CONFIG_RAID_ATTRS is not set
> -CONFIG_SCSI=y
> +CONFIG_SCSI=m
>  CONFIG_SCSI_DMA=y
>  # CONFIG_SCSI_TGT is not set
>  # CONFIG_SCSI_NETLINK is not set
> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>  #
>  # SCSI support type (disk, tape, CD-ROM)
>  #
> -CONFIG_BLK_DEV_SD=y
> +CONFIG_BLK_DEV_SD=m
>  # CONFIG_CHR_DEV_ST is not set
>  # CONFIG_CHR_DEV_OSST is not set
>  # CONFIG_BLK_DEV_SR is not set
> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>  # CONFIG_DM9000 is not set
>  # CONFIG_ENC28J60 is not set
>  # CONFIG_ETHOC is not set
> -# CONFIG_SMC911X is not set
> +CONFIG_SMC911X=y
>  CONFIG_SMSC911X=y
>  # CONFIG_DNET is not set
>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>  # CONFIG_B43LEGACY is not set
>  # CONFIG_HOSTAP is not set
>  # CONFIG_IWM is not set
> -CONFIG_LIBERTAS=y
> -CONFIG_LIBERTAS_USB=y
> -CONFIG_LIBERTAS_SDIO=y
> +CONFIG_LIBERTAS=m
> +CONFIG_LIBERTAS_USB=m
> +CONFIG_LIBERTAS_SDIO=m
>  # CONFIG_LIBERTAS_SPI is not set
>  CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_P54_COMMON is not set
> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_USB_KAWETH is not set
>  # CONFIG_USB_PEGASUS is not set
>  # CONFIG_USB_RTL8150 is not set
> -CONFIG_USB_USBNET=y
> -CONFIG_USB_NET_AX8817X=y
> -CONFIG_USB_NET_CDCETHER=y
> +CONFIG_USB_USBNET=m
> +CONFIG_USB_NET_AX8817X=m
> +CONFIG_USB_NET_CDCETHER=m
>  # CONFIG_USB_NET_CDC_EEM is not set
>  # CONFIG_USB_NET_DM9601 is not set
>  # CONFIG_USB_NET_SMSC95XX is not set
>  # CONFIG_USB_NET_GL620A is not set
> -CONFIG_USB_NET_NET1080=y
> +CONFIG_USB_NET_NET1080=m
>  # CONFIG_USB_NET_PLUSB is not set
>  # CONFIG_USB_NET_MCS7830 is not set
>  # CONFIG_USB_NET_RNDIS_HOST is not set
> -CONFIG_USB_NET_CDC_SUBSET=y
> +CONFIG_USB_NET_CDC_SUBSET=m
>  CONFIG_USB_ALI_M5632=y
>  CONFIG_USB_AN2720=y
>  CONFIG_USB_BELKIN=y
>  CONFIG_USB_ARMLINUX=y
>  CONFIG_USB_EPSON2888=y
>  CONFIG_USB_KC2190=y
> -CONFIG_USB_NET_ZAURUS=y
> +CONFIG_USB_NET_ZAURUS=m
>  # CONFIG_USB_NET_INT51X1 is not set
>  # CONFIG_WAN is not set
>  # CONFIG_PPP is not set
> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>  #
>  # Userland interfaces
>  #
> -CONFIG_INPUT_MOUSEDEV=y
> +CONFIG_INPUT_MOUSEDEV=m
>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> -CONFIG_INPUT_JOYDEV=y
> +CONFIG_INPUT_JOYDEV=m
>  CONFIG_INPUT_EVDEV=y
>  # CONFIG_INPUT_EVBUG is not set
> 
> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>  CONFIG_KEYBOARD_TWL4030=y
>  # CONFIG_KEYBOARD_XTKBD is not set
>  CONFIG_INPUT_MOUSE=y
> -CONFIG_MOUSE_PS2=y
> +CONFIG_MOUSE_PS2=m
>  CONFIG_MOUSE_PS2_ALPS=y
>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>  CONFIG_MOUSE_PS2_SYNAPTICS=y
> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>  # CONFIG_INPUT_JOYSTICK is not set
>  # CONFIG_INPUT_TABLET is not set
>  CONFIG_INPUT_TOUCHSCREEN=y
> -CONFIG_TOUCHSCREEN_ADS7846=y
> +CONFIG_TOUCHSCREEN_ADS7846=m
>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>  #
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
> -CONFIG_SERIAL_8250_NR_UARTS=32
> +CONFIG_SERIAL_8250_NR_UARTS=4
>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>  CONFIG_SERIAL_8250_EXTENDED=y
>  CONFIG_SERIAL_8250_MANY_PORTS=y
> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>  # CONFIG_LEGACY_PTYS is not set
>  # CONFIG_IPMI_HANDLER is not set
> -CONFIG_HW_RANDOM=y
> +CONFIG_HW_RANDOM=m
>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
> -CONFIG_HW_RANDOM_OMAP=y
> +CONFIG_HW_RANDOM_OMAP=m
>  # CONFIG_R3964 is not set
>  # CONFIG_RAW_DRIVER is not set
>  # CONFIG_TCG_TPM is not set
> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>  #
>  # CONFIG_SPI_BITBANG is not set
>  # CONFIG_SPI_GPIO is not set
> -CONFIG_SPI_OMAP24XX=y
> +CONFIG_SPI_OMAP24XX=m
>  # CONFIG_SPI_XILINX is not set
>  # CONFIG_SPI_DESIGNWARE is not set
> 
> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>  #
>  # AC97 GPIO expanders:
>  #
> -CONFIG_W1=y
> +CONFIG_W1=m
>  CONFIG_W1_CON=y
> 
>  #
> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>  # CONFIG_W1_SLAVE_DS2433 is not set
>  # CONFIG_W1_SLAVE_DS2760 is not set
>  # CONFIG_W1_SLAVE_BQ27000 is not set
> -CONFIG_POWER_SUPPLY=y
> +CONFIG_POWER_SUPPLY=m
>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>  # CONFIG_PDA_POWER is not set
>  # CONFIG_BATTERY_DS2760 is not set
>  # CONFIG_BATTERY_DS2782 is not set
>  # CONFIG_BATTERY_BQ27x00 is not set
>  # CONFIG_BATTERY_MAX17040 is not set
> -CONFIG_HWMON=y
> +CONFIG_HWMON=m
>  # CONFIG_HWMON_VID is not set
>  # CONFIG_HWMON_DEBUG_CHIP is not set
> 
> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>  # Watchdog Device Drivers
>  #
>  # CONFIG_SOFT_WATCHDOG is not set
> -CONFIG_OMAP_WATCHDOG=y
> -CONFIG_TWL4030_WATCHDOG=y
> +CONFIG_OMAP_WATCHDOG=m
> +CONFIG_TWL4030_WATCHDOG=m
> 
>  #
>  # USB-based Watchdog Cards
> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>  # CONFIG_TPS65010 is not set
>  # CONFIG_MENELAUS is not set
>  CONFIG_TWL4030_CORE=y
> -# CONFIG_TWL4030_POWER is not set
> +CONFIG_TWL4030_POWER=y
>  CONFIG_TWL4030_CODEC=y
>  # CONFIG_MFD_TMIO is not set
>  # CONFIG_MFD_T7L66XB is not set
> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>  #
>  # CONFIG_VGASTATE is not set
>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
> -CONFIG_FB=y
> +CONFIG_FB=m
>  CONFIG_FIRMWARE_EDID=y
>  # CONFIG_FB_DDC is not set
>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
> -CONFIG_FB_CFB_FILLRECT=y
> -CONFIG_FB_CFB_COPYAREA=y
> -CONFIG_FB_CFB_IMAGEBLIT=y
> +CONFIG_FB_CFB_FILLRECT=m
> +CONFIG_FB_CFB_COPYAREA=m
> +CONFIG_FB_CFB_IMAGEBLIT=m
>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>  # CONFIG_FB_SYS_FILLRECT is not set
>  # CONFIG_FB_SYS_COPYAREA is not set
> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>  # CONFIG_FB_METRONOME is not set
>  # CONFIG_FB_MB862XX is not set
>  # CONFIG_FB_BROADSHEET is not set
> -CONFIG_FB_OMAP=y
>  CONFIG_FB_OMAP_LCD_VGA=y
> -# CONFIG_FB_OMAP_031M3R is not set
> -# CONFIG_FB_OMAP_048M3R is not set
> -CONFIG_FB_OMAP_079M3R=y
> -# CONFIG_FB_OMAP_092M9R is not set
> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
> -# CONFIG_OMAP2_DSS is not set
> +CONFIG_OMAP2_VRAM=y
> +CONFIG_OMAP2_VRFB=y
> +CONFIG_OMAP2_DSS=m
> +CONFIG_OMAP2_VRAM_SIZE=4
> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
> +# CONFIG_OMAP2_DSS_RFBI is not set
> +CONFIG_OMAP2_DSS_VENC=y
> +# CONFIG_OMAP2_DSS_SDI is not set
> +# CONFIG_OMAP2_DSS_DSI is not set
> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
> +CONFIG_FB_OMAP2=m
> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
> +CONFIG_FB_OMAP2_NUM_FBS=3
> +
> +#
> +# OMAP2/3 Display Device Drivers
> +#
> +CONFIG_PANEL_GENERIC=m
> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
> -CONFIG_LCD_CLASS_DEVICE=y
> +CONFIG_LCD_CLASS_DEVICE=m
>  # CONFIG_LCD_LMS283GF05 is not set
>  # CONFIG_LCD_LTV350QV is not set
>  # CONFIG_LCD_ILI9320 is not set
>  # CONFIG_LCD_TDO24M is not set
>  # CONFIG_LCD_VGG2432A4 is not set
> -CONFIG_LCD_PLATFORM=y
> +CONFIG_LCD_PLATFORM=m
>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>  CONFIG_BACKLIGHT_GENERIC=y
> 
> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>  #
>  # CONFIG_VGA_CONSOLE is not set
>  CONFIG_DUMMY_CONSOLE=y
> -CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_FRAMEBUFFER_CONSOLE=m
>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>  CONFIG_FONTS=y
> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>  CONFIG_SND=y
>  CONFIG_SND_TIMER=y
>  CONFIG_SND_PCM=y
> -CONFIG_SND_HWDEP=y
> -CONFIG_SND_RAWMIDI=y
> +CONFIG_SND_HWDEP=m
> +CONFIG_SND_RAWMIDI=m
>  CONFIG_SND_JACK=y
>  # CONFIG_SND_SEQUENCER is not set
>  CONFIG_SND_OSSEMUL=y
> -CONFIG_SND_MIXER_OSS=y
> -CONFIG_SND_PCM_OSS=y
> +CONFIG_SND_MIXER_OSS=m
> +CONFIG_SND_PCM_OSS=m
>  CONFIG_SND_PCM_OSS_PLUGINS=y
>  # CONFIG_SND_HRTIMER is not set
>  # CONFIG_SND_DYNAMIC_MINORS is not set
> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>  CONFIG_SND_ARM=y
>  CONFIG_SND_SPI=y
>  CONFIG_SND_USB=y
> -CONFIG_SND_USB_AUDIO=y
> +CONFIG_SND_USB_AUDIO=m
>  # CONFIG_SND_USB_CAIAQ is not set
>  CONFIG_SND_SOC=y
>  CONFIG_SND_OMAP_SOC=y
> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>  #
>  # USB Input Devices
>  #
> -CONFIG_USB_HID=y
> +CONFIG_USB_HID=m
>  # CONFIG_HID_PID is not set
>  # CONFIG_USB_HIDDEV is not set
> 
>  #
> +# USB HID Boot Protocol drivers
> +#
> +# CONFIG_USB_KBD is not set
> +# CONFIG_USB_MOUSE is not set
> +
> +#
>  # Special HID drivers
>  #
>  # CONFIG_HID_A4TECH is not set
> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>  CONFIG_USB_ARCH_HAS_HCD=y
>  CONFIG_USB_ARCH_HAS_OHCI=y
>  CONFIG_USB_ARCH_HAS_EHCI=y
> -CONFIG_USB=y
> +CONFIG_USB=m
>  CONFIG_USB_DEBUG=y
>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
> 
> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>  CONFIG_USB_OTG=y
>  # CONFIG_USB_OTG_WHITELIST is not set
>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
> -CONFIG_USB_MON=y
> +CONFIG_USB_MON=m
>  # CONFIG_USB_WUSB is not set
>  # CONFIG_USB_WUSB_CBAF is not set
> 
> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>  # CONFIG_USB_SL811_HCD is not set
>  # CONFIG_USB_R8A66597_HCD is not set
>  # CONFIG_USB_HWA_HCD is not set
> -CONFIG_USB_MUSB_HDRC=y
> +CONFIG_USB_MUSB_HDRC=m
>  CONFIG_USB_MUSB_SOC=y
> 
>  #
> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>  #
>  # CONFIG_USB_ACM is not set
>  # CONFIG_USB_PRINTER is not set
> -CONFIG_USB_WDM=y
> +CONFIG_USB_WDM=m
>  # CONFIG_USB_TMC is not set
> 
>  #
> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>  #
>  # also be needed; see USB_STORAGE Help for more info
>  #
> -CONFIG_USB_STORAGE=y
> +CONFIG_USB_STORAGE=m
>  # CONFIG_USB_STORAGE_DEBUG is not set
>  # CONFIG_USB_STORAGE_DATAFAB is not set
>  # CONFIG_USB_STORAGE_FREECOM is not set
> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>  # CONFIG_USB_LD is not set
>  # CONFIG_USB_TRANCEVIBRATOR is not set
>  # CONFIG_USB_IOWARRIOR is not set
> -CONFIG_USB_TEST=y
> +CONFIG_USB_TEST=m
>  # CONFIG_USB_ISIGHTFW is not set
>  # CONFIG_USB_VST is not set
> -CONFIG_USB_GADGET=y
> +CONFIG_USB_GADGET=m
>  CONFIG_USB_GADGET_DEBUG=y
>  CONFIG_USB_GADGET_DEBUG_FILES=y
>  CONFIG_USB_GADGET_DEBUG_FS=y
> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>  # CONFIG_USB_GPIO_VBUS is not set
>  # CONFIG_ISP1301_OMAP is not set
>  # CONFIG_USB_ULPI is not set
> -CONFIG_TWL4030_USB=y
> -CONFIG_NOP_USB_XCEIV=y
> +CONFIG_TWL4030_USB=m
> +CONFIG_NOP_USB_XCEIV=m
>  CONFIG_MMC=y
>  # CONFIG_MMC_DEBUG is not set
>  CONFIG_MMC_UNSAFE_RESUME=y
> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>  #
>  # MMC/SD/SDIO Card Drivers
>  #
> -CONFIG_MMC_BLOCK=y
> +CONFIG_MMC_BLOCK=m
>  CONFIG_MMC_BLOCK_BOUNCE=y
> -CONFIG_SDIO_UART=y
> +CONFIG_SDIO_UART=m
>  # CONFIG_MMC_TEST is not set
> 
>  #
> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>  #
>  # CONFIG_MMC_SDHCI is not set
>  # CONFIG_MMC_OMAP is not set
> -CONFIG_MMC_OMAP_HS=y
> +CONFIG_MMC_OMAP_HS=m
>  # CONFIG_MMC_AT91 is not set
>  # CONFIG_MMC_ATMELMCI is not set
>  # CONFIG_MMC_SPI is not set
> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>  #
>  # CONFIG_ACCESSIBILITY is not set
>  CONFIG_RTC_LIB=y
> -CONFIG_RTC_CLASS=y
> -CONFIG_RTC_HCTOSYS=y
> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> -# CONFIG_RTC_DEBUG is not set
> +CONFIG_RTC_CLASS=m
> 
>  #
>  # RTC interfaces
> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>  # CONFIG_RTC_DRV_PCF8583 is not set
>  # CONFIG_RTC_DRV_M41T80 is not set
>  # CONFIG_RTC_DRV_BQ32K is not set
> -CONFIG_RTC_DRV_TWL4030=y
> +CONFIG_RTC_DRV_TWL4030=m
>  # CONFIG_RTC_DRV_S35390A is not set
>  # CONFIG_RTC_DRV_FM3130 is not set
>  # CONFIG_RTC_DRV_RX8581 is not set
> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>  # CONFIG_STAGING is not set
> 
>  #
> +# CBUS support
> +#
> +# CONFIG_CBUS is not set
> +
> +#
>  # File systems
>  #
>  CONFIG_EXT2_FS=y
> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>  CONFIG_SCHEDSTATS=y
>  CONFIG_TIMER_STATS=y
>  # CONFIG_DEBUG_OBJECTS is not set
> -# CONFIG_DEBUG_SLAB is not set
>  # CONFIG_DEBUG_KMEMLEAK is not set
> +CONFIG_DEBUG_PREEMPT=y
>  # CONFIG_DEBUG_RT_MUTEXES is not set
>  # CONFIG_RT_MUTEX_TESTER is not set
>  CONFIG_DEBUG_SPINLOCK=y
> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>  # CONFIG_BOOT_PRINTK_DELAY is not set
>  # CONFIG_RCU_TORTURE_TEST is not set
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -# CONFIG_KPROBES_SANITY_TEST is not set
>  # CONFIG_BACKTRACE_SELF_TEST is not set
>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
> -# CONFIG_LKDTM is not set
>  # CONFIG_FAULT_INJECTION is not set
>  # CONFIG_LATENCYTOP is not set
>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>  CONFIG_FTRACE=y
>  # CONFIG_FUNCTION_TRACER is not set
>  # CONFIG_IRQSOFF_TRACER is not set
> +# CONFIG_PREEMPT_TRACER is not set
>  # CONFIG_SCHED_TRACER is not set
>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>  # CONFIG_BOOT_TRACER is not set
> --
> 1.6.6
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


-- 
Regards,
Nishanth Menon

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  2:01 ` Nishanth Menon
@ 2010-01-30 10:25   ` Koen Kooi
  2010-02-01 17:32   ` Kevin Hilman
  1 sibling, 0 replies; 12+ messages in thread
From: Koen Kooi @ 2010-01-30 10:25 UTC (permalink / raw)
  To: Nishanth Menon; +Cc: Kevin Hilman, linux-omap@vger.kernel.org


Op 30 jan 2010, om 03:01 heeft Nishanth Menon het volgende geschreven:

> Kevin Hilman had written, on 01/29/2010 06:26 PM, the following:
>> Update omap3_defconfig to work towards a minimal kernel by building
>> most things as modules.  Some drivers that cannot currently be built
>> as modules and need to be fixed:
>> - MMC: platform code uses MMC core regulator functions directly
>> - ASoC: drivers call omap_ctrl_[read|write] directly
>> In addition some additional changes:
>> - use new SLUB allocator instead of SLAB (increased debugability)
>> - compile with PREEMPT enabled by default
>> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> Curious: Does'nt most of busybox build's fail to boot without this?

All the busybox builds I did for the past 3 (maybe 4) years have been EABI. People tracking a git kernel should just "get with the program" I guess :) And let's not forget that due to the ABI differences things like alsa don't work properly with EABI kernel + OABI rootfs.
Enabling the OABI compat also introduces a bit of overhead when used with a pure EABI rootfs.

regards,

Koen

^ permalink raw reply	[flat|nested] 12+ messages in thread

* RE: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
  2010-01-30  2:01 ` Nishanth Menon
@ 2010-02-01 16:09 ` Madhusudhan
  2010-02-02 17:44   ` Kevin Hilman
  2010-02-01 19:49 ` Olof Johansson
                   ` (2 subsequent siblings)
  4 siblings, 1 reply; 12+ messages in thread
From: Madhusudhan @ 2010-02-01 16:09 UTC (permalink / raw)
  To: 'Kevin Hilman', linux-omap



> -----Original Message-----
> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-
> owner@vger.kernel.org] On Behalf Of Kevin Hilman
> Sent: Friday, January 29, 2010 6:27 PM
> To: linux-omap@vger.kernel.org
> Subject: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
> 
> Update omap3_defconfig to work towards a minimal kernel by building
> most things as modules.  Some drivers that cannot currently be built
> as modules and need to be fixed:
> 
> - MMC: platform code uses MMC core regulator functions directly

The below series posted to LO by Adrian fixes this issue. The core regulator
calls are moved into the controller driver.

[PATCH V2 0/10] omap_hsmmc changes V2

Regards,
Madhu


> - ASoC: drivers call omap_ctrl_[read|write] directly
> 
> In addition some additional changes:
> 
> - use new SLUB allocator instead of SLAB (increased debugability)
> - compile with PREEMPT enabled by default
> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> - disable CPUfreq: not yet supported in mainline
> - disable PM_DEBUG_VERBOSE
> - enable fb/DSS2 as modules
> - disable Kprobes
> 
> zImage size comparison
> before: 3160272
> after:  2610108
> 
> Some ideas for reducing this further:
> - fix MMC and ASoC, then build those as modules
> - disable all the kernel debug features
> - convert MTD and all flash fs to modules
> 
> Then, we should have platform specific initramfs configs so rootfs
> from flash, MMC, etc. could be done using modules in initramfs.
> 
> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
> ---
>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++-------------
> -----
>  1 files changed, 112 insertions(+), 103 deletions(-)
> 
> diff --git a/arch/arm/configs/omap3_defconfig
> b/arch/arm/configs/omap3_defconfig
> index 2bc80d7..247f191 100644
> --- a/arch/arm/configs/omap3_defconfig
> +++ b/arch/arm/configs/omap3_defconfig
> @@ -1,7 +1,7 @@
>  #
>  # Automatically generated make config: don't edit
>  # Linux kernel version: 2.6.33-rc5
> -# Tue Jan 26 11:05:31 2010
> +# Fri Jan 29 16:02:40 2010
>  #
>  CONFIG_ARM=y
>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>  #
>  CONFIG_EXPERIMENTAL=y
>  CONFIG_BROKEN_ON_SMP=y
> +CONFIG_LOCK_KERNEL=y
>  CONFIG_INIT_ENV_ARG_LIMIT=32
>  CONFIG_LOCALVERSION=""
>  CONFIG_LOCALVERSION_AUTO=y
> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>  # Kernel Performance Events And Counters
>  #
>  CONFIG_VM_EVENT_COUNTERS=y
> +# CONFIG_SLUB_DEBUG is not set
>  CONFIG_COMPAT_BRK=y
> -CONFIG_SLAB=y
> -# CONFIG_SLUB is not set
> +# CONFIG_SLAB is not set
> +CONFIG_SLUB=y
>  # CONFIG_SLOB is not set
>  CONFIG_PROFILING=y
>  CONFIG_TRACEPOINTS=y
> -CONFIG_OPROFILE=y
> +CONFIG_OPROFILE=m
>  CONFIG_HAVE_OPROFILE=y
> -CONFIG_KPROBES=y
> -CONFIG_KRETPROBES=y
> +# CONFIG_KPROBES is not set
>  CONFIG_HAVE_KPROBES=y
>  CONFIG_HAVE_KRETPROBES=y
>  CONFIG_HAVE_CLK=y
> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>  # CONFIG_GCOV_KERNEL is not set
>  # CONFIG_SLOW_WORK is not set
>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
> -CONFIG_SLABINFO=y
>  CONFIG_RT_MUTEXES=y
>  CONFIG_BASE_SMALL=0
>  CONFIG_MODULES=y
> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>  CONFIG_OMAP_MUX_DEBUG=y
>  CONFIG_OMAP_MUX_WARNINGS=y
>  CONFIG_OMAP_MCBSP=y
> -# CONFIG_OMAP_MBOX_FWK is not set
> +CONFIG_OMAP_MBOX_FWK=m
>  # CONFIG_OMAP_MPU_TIMER is not set
>  CONFIG_OMAP_32K_TIMER=y
>  CONFIG_OMAP_32K_TIMER_HZ=128
> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>  # CONFIG_VMSPLIT_2G is not set
>  # CONFIG_VMSPLIT_1G is not set
>  CONFIG_PAGE_OFFSET=0xC0000000
> -CONFIG_PREEMPT_NONE=y
> +# CONFIG_PREEMPT_NONE is not set
>  # CONFIG_PREEMPT_VOLUNTARY is not set
> -# CONFIG_PREEMPT is not set
> +CONFIG_PREEMPT=y
>  CONFIG_HZ=128
>  # CONFIG_THUMB2_KERNEL is not set
>  CONFIG_AEABI=y
> -CONFIG_OABI_COMPAT=y
> +# CONFIG_OABI_COMPAT is not set
> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>  # CONFIG_HIGHMEM is not set
> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>  #
>  # CPU Power Management
>  #
> -CONFIG_CPU_FREQ=y
> -CONFIG_CPU_FREQ_TABLE=y
> -# CONFIG_CPU_FREQ_DEBUG is not set
> -CONFIG_CPU_FREQ_STAT=y
> -CONFIG_CPU_FREQ_STAT_DETAILS=y
> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
> +# CONFIG_CPU_FREQ is not set
> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>  # CONFIG_CPU_IDLE is not set
> 
>  #
> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>  #
>  CONFIG_PM=y
>  CONFIG_PM_DEBUG=y
> -CONFIG_PM_VERBOSE=y
> +# CONFIG_PM_VERBOSE is not set
>  CONFIG_CAN_PM_TRACE=y
>  CONFIG_PM_SLEEP=y
>  CONFIG_SUSPEND=y
> -# CONFIG_PM_TEST_SUSPEND is not set
>  CONFIG_SUSPEND_FREEZER=y
>  # CONFIG_APM_EMULATION is not set
>  # CONFIG_PM_RUNTIME is not set
> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>  # Network testing
>  #
>  # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_TCPPROBE is not set
>  # CONFIG_NET_DROP_MONITOR is not set
>  # CONFIG_HAMRADIO is not set
>  # CONFIG_CAN is not set
>  # CONFIG_IRDA is not set
> -CONFIG_BT=y
> -CONFIG_BT_L2CAP=y
> -CONFIG_BT_SCO=y
> -CONFIG_BT_RFCOMM=y
> +CONFIG_BT=m
> +CONFIG_BT_L2CAP=m
> +CONFIG_BT_SCO=m
> +CONFIG_BT_RFCOMM=m
>  CONFIG_BT_RFCOMM_TTY=y
> -CONFIG_BT_BNEP=y
> +CONFIG_BT_BNEP=m
>  CONFIG_BT_BNEP_MC_FILTER=y
>  CONFIG_BT_BNEP_PROTO_FILTER=y
> -CONFIG_BT_HIDP=y
> +CONFIG_BT_HIDP=m
> 
>  #
>  # Bluetooth device drivers
>  #
>  # CONFIG_BT_HCIBTUSB is not set
>  # CONFIG_BT_HCIBTSDIO is not set
> -CONFIG_BT_HCIUART=y
> +CONFIG_BT_HCIUART=m
>  CONFIG_BT_HCIUART_H4=y
>  CONFIG_BT_HCIUART_BCSP=y
>  CONFIG_BT_HCIUART_LL=y
> -CONFIG_BT_HCIBCM203X=y
> -CONFIG_BT_HCIBPA10X=y
> +CONFIG_BT_HCIBCM203X=m
> +CONFIG_BT_HCIBPA10X=m
>  # CONFIG_BT_HCIBFUSB is not set
>  # CONFIG_BT_HCIVHCI is not set
>  # CONFIG_BT_MRVL is not set
> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>  # CONFIG_MTD_PHYSMAP is not set
>  # CONFIG_MTD_ARM_INTEGRATOR is not set
> -CONFIG_MTD_OMAP_NOR=y
>  # CONFIG_MTD_PLATRAM is not set
> 
>  #
> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>  # SCSI device support
>  #
>  # CONFIG_RAID_ATTRS is not set
> -CONFIG_SCSI=y
> +CONFIG_SCSI=m
>  CONFIG_SCSI_DMA=y
>  # CONFIG_SCSI_TGT is not set
>  # CONFIG_SCSI_NETLINK is not set
> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>  #
>  # SCSI support type (disk, tape, CD-ROM)
>  #
> -CONFIG_BLK_DEV_SD=y
> +CONFIG_BLK_DEV_SD=m
>  # CONFIG_CHR_DEV_ST is not set
>  # CONFIG_CHR_DEV_OSST is not set
>  # CONFIG_BLK_DEV_SR is not set
> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>  # CONFIG_DM9000 is not set
>  # CONFIG_ENC28J60 is not set
>  # CONFIG_ETHOC is not set
> -# CONFIG_SMC911X is not set
> +CONFIG_SMC911X=y
>  CONFIG_SMSC911X=y
>  # CONFIG_DNET is not set
>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>  # CONFIG_B43LEGACY is not set
>  # CONFIG_HOSTAP is not set
>  # CONFIG_IWM is not set
> -CONFIG_LIBERTAS=y
> -CONFIG_LIBERTAS_USB=y
> -CONFIG_LIBERTAS_SDIO=y
> +CONFIG_LIBERTAS=m
> +CONFIG_LIBERTAS_USB=m
> +CONFIG_LIBERTAS_SDIO=m
>  # CONFIG_LIBERTAS_SPI is not set
>  CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_P54_COMMON is not set
> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_USB_KAWETH is not set
>  # CONFIG_USB_PEGASUS is not set
>  # CONFIG_USB_RTL8150 is not set
> -CONFIG_USB_USBNET=y
> -CONFIG_USB_NET_AX8817X=y
> -CONFIG_USB_NET_CDCETHER=y
> +CONFIG_USB_USBNET=m
> +CONFIG_USB_NET_AX8817X=m
> +CONFIG_USB_NET_CDCETHER=m
>  # CONFIG_USB_NET_CDC_EEM is not set
>  # CONFIG_USB_NET_DM9601 is not set
>  # CONFIG_USB_NET_SMSC95XX is not set
>  # CONFIG_USB_NET_GL620A is not set
> -CONFIG_USB_NET_NET1080=y
> +CONFIG_USB_NET_NET1080=m
>  # CONFIG_USB_NET_PLUSB is not set
>  # CONFIG_USB_NET_MCS7830 is not set
>  # CONFIG_USB_NET_RNDIS_HOST is not set
> -CONFIG_USB_NET_CDC_SUBSET=y
> +CONFIG_USB_NET_CDC_SUBSET=m
>  CONFIG_USB_ALI_M5632=y
>  CONFIG_USB_AN2720=y
>  CONFIG_USB_BELKIN=y
>  CONFIG_USB_ARMLINUX=y
>  CONFIG_USB_EPSON2888=y
>  CONFIG_USB_KC2190=y
> -CONFIG_USB_NET_ZAURUS=y
> +CONFIG_USB_NET_ZAURUS=m
>  # CONFIG_USB_NET_INT51X1 is not set
>  # CONFIG_WAN is not set
>  # CONFIG_PPP is not set
> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>  #
>  # Userland interfaces
>  #
> -CONFIG_INPUT_MOUSEDEV=y
> +CONFIG_INPUT_MOUSEDEV=m
>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> -CONFIG_INPUT_JOYDEV=y
> +CONFIG_INPUT_JOYDEV=m
>  CONFIG_INPUT_EVDEV=y
>  # CONFIG_INPUT_EVBUG is not set
> 
> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>  CONFIG_KEYBOARD_TWL4030=y
>  # CONFIG_KEYBOARD_XTKBD is not set
>  CONFIG_INPUT_MOUSE=y
> -CONFIG_MOUSE_PS2=y
> +CONFIG_MOUSE_PS2=m
>  CONFIG_MOUSE_PS2_ALPS=y
>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>  CONFIG_MOUSE_PS2_SYNAPTICS=y
> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>  # CONFIG_INPUT_JOYSTICK is not set
>  # CONFIG_INPUT_TABLET is not set
>  CONFIG_INPUT_TOUCHSCREEN=y
> -CONFIG_TOUCHSCREEN_ADS7846=y
> +CONFIG_TOUCHSCREEN_ADS7846=m
>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>  #
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
> -CONFIG_SERIAL_8250_NR_UARTS=32
> +CONFIG_SERIAL_8250_NR_UARTS=4
>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>  CONFIG_SERIAL_8250_EXTENDED=y
>  CONFIG_SERIAL_8250_MANY_PORTS=y
> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>  # CONFIG_LEGACY_PTYS is not set
>  # CONFIG_IPMI_HANDLER is not set
> -CONFIG_HW_RANDOM=y
> +CONFIG_HW_RANDOM=m
>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
> -CONFIG_HW_RANDOM_OMAP=y
> +CONFIG_HW_RANDOM_OMAP=m
>  # CONFIG_R3964 is not set
>  # CONFIG_RAW_DRIVER is not set
>  # CONFIG_TCG_TPM is not set
> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>  #
>  # CONFIG_SPI_BITBANG is not set
>  # CONFIG_SPI_GPIO is not set
> -CONFIG_SPI_OMAP24XX=y
> +CONFIG_SPI_OMAP24XX=m
>  # CONFIG_SPI_XILINX is not set
>  # CONFIG_SPI_DESIGNWARE is not set
> 
> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>  #
>  # AC97 GPIO expanders:
>  #
> -CONFIG_W1=y
> +CONFIG_W1=m
>  CONFIG_W1_CON=y
> 
>  #
> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>  # CONFIG_W1_SLAVE_DS2433 is not set
>  # CONFIG_W1_SLAVE_DS2760 is not set
>  # CONFIG_W1_SLAVE_BQ27000 is not set
> -CONFIG_POWER_SUPPLY=y
> +CONFIG_POWER_SUPPLY=m
>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>  # CONFIG_PDA_POWER is not set
>  # CONFIG_BATTERY_DS2760 is not set
>  # CONFIG_BATTERY_DS2782 is not set
>  # CONFIG_BATTERY_BQ27x00 is not set
>  # CONFIG_BATTERY_MAX17040 is not set
> -CONFIG_HWMON=y
> +CONFIG_HWMON=m
>  # CONFIG_HWMON_VID is not set
>  # CONFIG_HWMON_DEBUG_CHIP is not set
> 
> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>  # Watchdog Device Drivers
>  #
>  # CONFIG_SOFT_WATCHDOG is not set
> -CONFIG_OMAP_WATCHDOG=y
> -CONFIG_TWL4030_WATCHDOG=y
> +CONFIG_OMAP_WATCHDOG=m
> +CONFIG_TWL4030_WATCHDOG=m
> 
>  #
>  # USB-based Watchdog Cards
> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>  # CONFIG_TPS65010 is not set
>  # CONFIG_MENELAUS is not set
>  CONFIG_TWL4030_CORE=y
> -# CONFIG_TWL4030_POWER is not set
> +CONFIG_TWL4030_POWER=y
>  CONFIG_TWL4030_CODEC=y
>  # CONFIG_MFD_TMIO is not set
>  # CONFIG_MFD_T7L66XB is not set
> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>  #
>  # CONFIG_VGASTATE is not set
>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
> -CONFIG_FB=y
> +CONFIG_FB=m
>  CONFIG_FIRMWARE_EDID=y
>  # CONFIG_FB_DDC is not set
>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
> -CONFIG_FB_CFB_FILLRECT=y
> -CONFIG_FB_CFB_COPYAREA=y
> -CONFIG_FB_CFB_IMAGEBLIT=y
> +CONFIG_FB_CFB_FILLRECT=m
> +CONFIG_FB_CFB_COPYAREA=m
> +CONFIG_FB_CFB_IMAGEBLIT=m
>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>  # CONFIG_FB_SYS_FILLRECT is not set
>  # CONFIG_FB_SYS_COPYAREA is not set
> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>  # CONFIG_FB_METRONOME is not set
>  # CONFIG_FB_MB862XX is not set
>  # CONFIG_FB_BROADSHEET is not set
> -CONFIG_FB_OMAP=y
>  CONFIG_FB_OMAP_LCD_VGA=y
> -# CONFIG_FB_OMAP_031M3R is not set
> -# CONFIG_FB_OMAP_048M3R is not set
> -CONFIG_FB_OMAP_079M3R=y
> -# CONFIG_FB_OMAP_092M9R is not set
> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
> -# CONFIG_OMAP2_DSS is not set
> +CONFIG_OMAP2_VRAM=y
> +CONFIG_OMAP2_VRFB=y
> +CONFIG_OMAP2_DSS=m
> +CONFIG_OMAP2_VRAM_SIZE=4
> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
> +# CONFIG_OMAP2_DSS_RFBI is not set
> +CONFIG_OMAP2_DSS_VENC=y
> +# CONFIG_OMAP2_DSS_SDI is not set
> +# CONFIG_OMAP2_DSS_DSI is not set
> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
> +CONFIG_FB_OMAP2=m
> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
> +CONFIG_FB_OMAP2_NUM_FBS=3
> +
> +#
> +# OMAP2/3 Display Device Drivers
> +#
> +CONFIG_PANEL_GENERIC=m
> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
> -CONFIG_LCD_CLASS_DEVICE=y
> +CONFIG_LCD_CLASS_DEVICE=m
>  # CONFIG_LCD_LMS283GF05 is not set
>  # CONFIG_LCD_LTV350QV is not set
>  # CONFIG_LCD_ILI9320 is not set
>  # CONFIG_LCD_TDO24M is not set
>  # CONFIG_LCD_VGG2432A4 is not set
> -CONFIG_LCD_PLATFORM=y
> +CONFIG_LCD_PLATFORM=m
>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>  CONFIG_BACKLIGHT_GENERIC=y
> 
> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>  #
>  # CONFIG_VGA_CONSOLE is not set
>  CONFIG_DUMMY_CONSOLE=y
> -CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_FRAMEBUFFER_CONSOLE=m
>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>  CONFIG_FONTS=y
> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>  CONFIG_SND=y
>  CONFIG_SND_TIMER=y
>  CONFIG_SND_PCM=y
> -CONFIG_SND_HWDEP=y
> -CONFIG_SND_RAWMIDI=y
> +CONFIG_SND_HWDEP=m
> +CONFIG_SND_RAWMIDI=m
>  CONFIG_SND_JACK=y
>  # CONFIG_SND_SEQUENCER is not set
>  CONFIG_SND_OSSEMUL=y
> -CONFIG_SND_MIXER_OSS=y
> -CONFIG_SND_PCM_OSS=y
> +CONFIG_SND_MIXER_OSS=m
> +CONFIG_SND_PCM_OSS=m
>  CONFIG_SND_PCM_OSS_PLUGINS=y
>  # CONFIG_SND_HRTIMER is not set
>  # CONFIG_SND_DYNAMIC_MINORS is not set
> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>  CONFIG_SND_ARM=y
>  CONFIG_SND_SPI=y
>  CONFIG_SND_USB=y
> -CONFIG_SND_USB_AUDIO=y
> +CONFIG_SND_USB_AUDIO=m
>  # CONFIG_SND_USB_CAIAQ is not set
>  CONFIG_SND_SOC=y
>  CONFIG_SND_OMAP_SOC=y
> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>  #
>  # USB Input Devices
>  #
> -CONFIG_USB_HID=y
> +CONFIG_USB_HID=m
>  # CONFIG_HID_PID is not set
>  # CONFIG_USB_HIDDEV is not set
> 
>  #
> +# USB HID Boot Protocol drivers
> +#
> +# CONFIG_USB_KBD is not set
> +# CONFIG_USB_MOUSE is not set
> +
> +#
>  # Special HID drivers
>  #
>  # CONFIG_HID_A4TECH is not set
> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>  CONFIG_USB_ARCH_HAS_HCD=y
>  CONFIG_USB_ARCH_HAS_OHCI=y
>  CONFIG_USB_ARCH_HAS_EHCI=y
> -CONFIG_USB=y
> +CONFIG_USB=m
>  CONFIG_USB_DEBUG=y
>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
> 
> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>  CONFIG_USB_OTG=y
>  # CONFIG_USB_OTG_WHITELIST is not set
>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
> -CONFIG_USB_MON=y
> +CONFIG_USB_MON=m
>  # CONFIG_USB_WUSB is not set
>  # CONFIG_USB_WUSB_CBAF is not set
> 
> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>  # CONFIG_USB_SL811_HCD is not set
>  # CONFIG_USB_R8A66597_HCD is not set
>  # CONFIG_USB_HWA_HCD is not set
> -CONFIG_USB_MUSB_HDRC=y
> +CONFIG_USB_MUSB_HDRC=m
>  CONFIG_USB_MUSB_SOC=y
> 
>  #
> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>  #
>  # CONFIG_USB_ACM is not set
>  # CONFIG_USB_PRINTER is not set
> -CONFIG_USB_WDM=y
> +CONFIG_USB_WDM=m
>  # CONFIG_USB_TMC is not set
> 
>  #
> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>  #
>  # also be needed; see USB_STORAGE Help for more info
>  #
> -CONFIG_USB_STORAGE=y
> +CONFIG_USB_STORAGE=m
>  # CONFIG_USB_STORAGE_DEBUG is not set
>  # CONFIG_USB_STORAGE_DATAFAB is not set
>  # CONFIG_USB_STORAGE_FREECOM is not set
> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>  # CONFIG_USB_LD is not set
>  # CONFIG_USB_TRANCEVIBRATOR is not set
>  # CONFIG_USB_IOWARRIOR is not set
> -CONFIG_USB_TEST=y
> +CONFIG_USB_TEST=m
>  # CONFIG_USB_ISIGHTFW is not set
>  # CONFIG_USB_VST is not set
> -CONFIG_USB_GADGET=y
> +CONFIG_USB_GADGET=m
>  CONFIG_USB_GADGET_DEBUG=y
>  CONFIG_USB_GADGET_DEBUG_FILES=y
>  CONFIG_USB_GADGET_DEBUG_FS=y
> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>  # CONFIG_USB_GPIO_VBUS is not set
>  # CONFIG_ISP1301_OMAP is not set
>  # CONFIG_USB_ULPI is not set
> -CONFIG_TWL4030_USB=y
> -CONFIG_NOP_USB_XCEIV=y
> +CONFIG_TWL4030_USB=m
> +CONFIG_NOP_USB_XCEIV=m
>  CONFIG_MMC=y
>  # CONFIG_MMC_DEBUG is not set
>  CONFIG_MMC_UNSAFE_RESUME=y
> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>  #
>  # MMC/SD/SDIO Card Drivers
>  #
> -CONFIG_MMC_BLOCK=y
> +CONFIG_MMC_BLOCK=m
>  CONFIG_MMC_BLOCK_BOUNCE=y
> -CONFIG_SDIO_UART=y
> +CONFIG_SDIO_UART=m
>  # CONFIG_MMC_TEST is not set
> 
>  #
> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>  #
>  # CONFIG_MMC_SDHCI is not set
>  # CONFIG_MMC_OMAP is not set
> -CONFIG_MMC_OMAP_HS=y
> +CONFIG_MMC_OMAP_HS=m
>  # CONFIG_MMC_AT91 is not set
>  # CONFIG_MMC_ATMELMCI is not set
>  # CONFIG_MMC_SPI is not set
> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>  #
>  # CONFIG_ACCESSIBILITY is not set
>  CONFIG_RTC_LIB=y
> -CONFIG_RTC_CLASS=y
> -CONFIG_RTC_HCTOSYS=y
> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> -# CONFIG_RTC_DEBUG is not set
> +CONFIG_RTC_CLASS=m
> 
>  #
>  # RTC interfaces
> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>  # CONFIG_RTC_DRV_PCF8583 is not set
>  # CONFIG_RTC_DRV_M41T80 is not set
>  # CONFIG_RTC_DRV_BQ32K is not set
> -CONFIG_RTC_DRV_TWL4030=y
> +CONFIG_RTC_DRV_TWL4030=m
>  # CONFIG_RTC_DRV_S35390A is not set
>  # CONFIG_RTC_DRV_FM3130 is not set
>  # CONFIG_RTC_DRV_RX8581 is not set
> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>  # CONFIG_STAGING is not set
> 
>  #
> +# CBUS support
> +#
> +# CONFIG_CBUS is not set
> +
> +#
>  # File systems
>  #
>  CONFIG_EXT2_FS=y
> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>  CONFIG_SCHEDSTATS=y
>  CONFIG_TIMER_STATS=y
>  # CONFIG_DEBUG_OBJECTS is not set
> -# CONFIG_DEBUG_SLAB is not set
>  # CONFIG_DEBUG_KMEMLEAK is not set
> +CONFIG_DEBUG_PREEMPT=y
>  # CONFIG_DEBUG_RT_MUTEXES is not set
>  # CONFIG_RT_MUTEX_TESTER is not set
>  CONFIG_DEBUG_SPINLOCK=y
> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>  # CONFIG_BOOT_PRINTK_DELAY is not set
>  # CONFIG_RCU_TORTURE_TEST is not set
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -# CONFIG_KPROBES_SANITY_TEST is not set
>  # CONFIG_BACKTRACE_SELF_TEST is not set
>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
> -# CONFIG_LKDTM is not set
>  # CONFIG_FAULT_INJECTION is not set
>  # CONFIG_LATENCYTOP is not set
>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>  CONFIG_FTRACE=y
>  # CONFIG_FUNCTION_TRACER is not set
>  # CONFIG_IRQSOFF_TRACER is not set
> +# CONFIG_PREEMPT_TRACER is not set
>  # CONFIG_SCHED_TRACER is not set
>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>  # CONFIG_BOOT_TRACER is not set
> --
> 1.6.6
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  2:01 ` Nishanth Menon
  2010-01-30 10:25   ` Koen Kooi
@ 2010-02-01 17:32   ` Kevin Hilman
  1 sibling, 0 replies; 12+ messages in thread
From: Kevin Hilman @ 2010-02-01 17:32 UTC (permalink / raw)
  To: Nishanth Menon; +Cc: linux-omap@vger.kernel.org

Nishanth Menon <nm@ti.com> writes:

> Kevin Hilman had written, on 01/29/2010 06:26 PM, the following:
>> Update omap3_defconfig to work towards a minimal kernel by building
>> most things as modules.  Some drivers that cannot currently be built
>> as modules and need to be fixed:
>>
>> - MMC: platform code uses MMC core regulator functions directly
>> - ASoC: drivers call omap_ctrl_[read|write] directly
>>
>> In addition some additional changes:
>>
>> - use new SLUB allocator instead of SLAB (increased debugability)
>> - compile with PREEMPT enabled by default
>> - disable OABI_COMPAT.  We should not pretend to support this IMHO
>
> Curious: Does'nt most of busybox build's fail to boot without this?
>

Any busybox build using OABI needs to be fixed, or let them manually
re-enable OABI compat in the kernel config.

>> - disable CPUfreq: not yet supported in mainline
>> - disable PM_DEBUG_VERBOSE
>> - enable fb/DSS2 as modules
>> - disable Kprobes
>>
>> zImage size comparison
>> before: 3160272
>> after:  2610108
>>
>> Some ideas for reducing this further:
>> - fix MMC and ASoC, then build those as modules
>> - disable all the kernel debug features
>> - convert MTD and all flash fs to modules
>>
>> Then, we should have platform specific initramfs configs so rootfs
>> from flash, MMC, etc. could be done using modules in initramfs.
>
> How would we boot a system such as beagleboard new generation which
> may only have MMC from defconfig?
>
> hmm.. we could in theory get u-boot to load up an initial intramfs
> with modules, use that to mount a final filesystem etc.. but it is
> going to be a big pain if we were to do it.. IMHO, having flash, MMC,
> network will ease for developers to send quick tested solutions to
> us. Now, not that I am saying that the idea is bad - it is just a
> matter of trouble we might cause- how about a omap3_tiny_defconfig?

I am trying to work towards a common defconfig that builds a minimal
kernel.  We need to move towards a small kernel and doing platform
specific init in initramfs.  

Of course the distros for beagle or any other boards can use whatever
defconfig they would like, and re-enable MMC as built-in.

Kevin

>>
>> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
>> ---
>>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++------------------
>>  1 files changed, 112 insertions(+), 103 deletions(-)
>>
>> diff --git a/arch/arm/configs/omap3_defconfig b/arch/arm/configs/omap3_defconfig
>> index 2bc80d7..247f191 100644
>> --- a/arch/arm/configs/omap3_defconfig
>> +++ b/arch/arm/configs/omap3_defconfig
>> @@ -1,7 +1,7 @@
>>  #
>>  # Automatically generated make config: don't edit
>>  # Linux kernel version: 2.6.33-rc5
>> -# Tue Jan 26 11:05:31 2010
>> +# Fri Jan 29 16:02:40 2010
>>  #
>>  CONFIG_ARM=y
>>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
>> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>>  #
>>  CONFIG_EXPERIMENTAL=y
>>  CONFIG_BROKEN_ON_SMP=y
>> +CONFIG_LOCK_KERNEL=y
>>  CONFIG_INIT_ENV_ARG_LIMIT=32
>>  CONFIG_LOCALVERSION=""
>>  CONFIG_LOCALVERSION_AUTO=y
>> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>>  # Kernel Performance Events And Counters
>>  #
>>  CONFIG_VM_EVENT_COUNTERS=y
>> +# CONFIG_SLUB_DEBUG is not set
>>  CONFIG_COMPAT_BRK=y
>> -CONFIG_SLAB=y
>> -# CONFIG_SLUB is not set
>> +# CONFIG_SLAB is not set
>> +CONFIG_SLUB=y
>>  # CONFIG_SLOB is not set
>>  CONFIG_PROFILING=y
>>  CONFIG_TRACEPOINTS=y
>> -CONFIG_OPROFILE=y
>> +CONFIG_OPROFILE=m
>>  CONFIG_HAVE_OPROFILE=y
>> -CONFIG_KPROBES=y
>> -CONFIG_KRETPROBES=y
>> +# CONFIG_KPROBES is not set
>>  CONFIG_HAVE_KPROBES=y
>>  CONFIG_HAVE_KRETPROBES=y
>>  CONFIG_HAVE_CLK=y
>> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>>  # CONFIG_GCOV_KERNEL is not set
>>  # CONFIG_SLOW_WORK is not set
>>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
>> -CONFIG_SLABINFO=y
>>  CONFIG_RT_MUTEXES=y
>>  CONFIG_BASE_SMALL=0
>>  CONFIG_MODULES=y
>> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>>  CONFIG_OMAP_MUX_DEBUG=y
>>  CONFIG_OMAP_MUX_WARNINGS=y
>>  CONFIG_OMAP_MCBSP=y
>> -# CONFIG_OMAP_MBOX_FWK is not set
>> +CONFIG_OMAP_MBOX_FWK=m
>>  # CONFIG_OMAP_MPU_TIMER is not set
>>  CONFIG_OMAP_32K_TIMER=y
>>  CONFIG_OMAP_32K_TIMER_HZ=128
>> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>>  # CONFIG_VMSPLIT_2G is not set
>>  # CONFIG_VMSPLIT_1G is not set
>>  CONFIG_PAGE_OFFSET=0xC0000000
>> -CONFIG_PREEMPT_NONE=y
>> +# CONFIG_PREEMPT_NONE is not set
>>  # CONFIG_PREEMPT_VOLUNTARY is not set
>> -# CONFIG_PREEMPT is not set
>> +CONFIG_PREEMPT=y
>>  CONFIG_HZ=128
>>  # CONFIG_THUMB2_KERNEL is not set
>>  CONFIG_AEABI=y
>> -CONFIG_OABI_COMPAT=y
>> +# CONFIG_OABI_COMPAT is not set
>> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>>  # CONFIG_HIGHMEM is not set
>> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>>  #
>>  # CPU Power Management
>>  #
>> -CONFIG_CPU_FREQ=y
>> -CONFIG_CPU_FREQ_TABLE=y
>> -# CONFIG_CPU_FREQ_DEBUG is not set
>> -CONFIG_CPU_FREQ_STAT=y
>> -CONFIG_CPU_FREQ_STAT_DETAILS=y
>> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
>> +# CONFIG_CPU_FREQ is not set
>> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
>> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
>> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
>> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>>  # CONFIG_CPU_IDLE is not set
>>
>>  #
>> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>>  #
>>  CONFIG_PM=y
>>  CONFIG_PM_DEBUG=y
>> -CONFIG_PM_VERBOSE=y
>> +# CONFIG_PM_VERBOSE is not set
>>  CONFIG_CAN_PM_TRACE=y
>>  CONFIG_PM_SLEEP=y
>>  CONFIG_SUSPEND=y
>> -# CONFIG_PM_TEST_SUSPEND is not set
>>  CONFIG_SUSPEND_FREEZER=y
>>  # CONFIG_APM_EMULATION is not set
>>  # CONFIG_PM_RUNTIME is not set
>> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>>  # Network testing
>>  #
>>  # CONFIG_NET_PKTGEN is not set
>> -# CONFIG_NET_TCPPROBE is not set
>>  # CONFIG_NET_DROP_MONITOR is not set
>>  # CONFIG_HAMRADIO is not set
>>  # CONFIG_CAN is not set
>>  # CONFIG_IRDA is not set
>> -CONFIG_BT=y
>> -CONFIG_BT_L2CAP=y
>> -CONFIG_BT_SCO=y
>> -CONFIG_BT_RFCOMM=y
>> +CONFIG_BT=m
>> +CONFIG_BT_L2CAP=m
>> +CONFIG_BT_SCO=m
>> +CONFIG_BT_RFCOMM=m
>>  CONFIG_BT_RFCOMM_TTY=y
>> -CONFIG_BT_BNEP=y
>> +CONFIG_BT_BNEP=m
>>  CONFIG_BT_BNEP_MC_FILTER=y
>>  CONFIG_BT_BNEP_PROTO_FILTER=y
>> -CONFIG_BT_HIDP=y
>> +CONFIG_BT_HIDP=m
>>
>>  #
>>  # Bluetooth device drivers
>>  #
>>  # CONFIG_BT_HCIBTUSB is not set
>>  # CONFIG_BT_HCIBTSDIO is not set
>> -CONFIG_BT_HCIUART=y
>> +CONFIG_BT_HCIUART=m
>>  CONFIG_BT_HCIUART_H4=y
>>  CONFIG_BT_HCIUART_BCSP=y
>>  CONFIG_BT_HCIUART_LL=y
>> -CONFIG_BT_HCIBCM203X=y
>> -CONFIG_BT_HCIBPA10X=y
>> +CONFIG_BT_HCIBCM203X=m
>> +CONFIG_BT_HCIBPA10X=m
>>  # CONFIG_BT_HCIBFUSB is not set
>>  # CONFIG_BT_HCIVHCI is not set
>>  # CONFIG_BT_MRVL is not set
>> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>>  # CONFIG_MTD_PHYSMAP is not set
>>  # CONFIG_MTD_ARM_INTEGRATOR is not set
>> -CONFIG_MTD_OMAP_NOR=y
>>  # CONFIG_MTD_PLATRAM is not set
>>
>>  #
>> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>>  # SCSI device support
>>  #
>>  # CONFIG_RAID_ATTRS is not set
>> -CONFIG_SCSI=y
>> +CONFIG_SCSI=m
>>  CONFIG_SCSI_DMA=y
>>  # CONFIG_SCSI_TGT is not set
>>  # CONFIG_SCSI_NETLINK is not set
>> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>>  #
>>  # SCSI support type (disk, tape, CD-ROM)
>>  #
>> -CONFIG_BLK_DEV_SD=y
>> +CONFIG_BLK_DEV_SD=m
>>  # CONFIG_CHR_DEV_ST is not set
>>  # CONFIG_CHR_DEV_OSST is not set
>>  # CONFIG_BLK_DEV_SR is not set
>> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>>  # CONFIG_DM9000 is not set
>>  # CONFIG_ENC28J60 is not set
>>  # CONFIG_ETHOC is not set
>> -# CONFIG_SMC911X is not set
>> +CONFIG_SMC911X=y
>>  CONFIG_SMSC911X=y
>>  # CONFIG_DNET is not set
>>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
>> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>>  # CONFIG_B43LEGACY is not set
>>  # CONFIG_HOSTAP is not set
>>  # CONFIG_IWM is not set
>> -CONFIG_LIBERTAS=y
>> -CONFIG_LIBERTAS_USB=y
>> -CONFIG_LIBERTAS_SDIO=y
>> +CONFIG_LIBERTAS=m
>> +CONFIG_LIBERTAS_USB=m
>> +CONFIG_LIBERTAS_SDIO=m
>>  # CONFIG_LIBERTAS_SPI is not set
>>  CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_P54_COMMON is not set
>> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_USB_KAWETH is not set
>>  # CONFIG_USB_PEGASUS is not set
>>  # CONFIG_USB_RTL8150 is not set
>> -CONFIG_USB_USBNET=y
>> -CONFIG_USB_NET_AX8817X=y
>> -CONFIG_USB_NET_CDCETHER=y
>> +CONFIG_USB_USBNET=m
>> +CONFIG_USB_NET_AX8817X=m
>> +CONFIG_USB_NET_CDCETHER=m
>>  # CONFIG_USB_NET_CDC_EEM is not set
>>  # CONFIG_USB_NET_DM9601 is not set
>>  # CONFIG_USB_NET_SMSC95XX is not set
>>  # CONFIG_USB_NET_GL620A is not set
>> -CONFIG_USB_NET_NET1080=y
>> +CONFIG_USB_NET_NET1080=m
>>  # CONFIG_USB_NET_PLUSB is not set
>>  # CONFIG_USB_NET_MCS7830 is not set
>>  # CONFIG_USB_NET_RNDIS_HOST is not set
>> -CONFIG_USB_NET_CDC_SUBSET=y
>> +CONFIG_USB_NET_CDC_SUBSET=m
>>  CONFIG_USB_ALI_M5632=y
>>  CONFIG_USB_AN2720=y
>>  CONFIG_USB_BELKIN=y
>>  CONFIG_USB_ARMLINUX=y
>>  CONFIG_USB_EPSON2888=y
>>  CONFIG_USB_KC2190=y
>> -CONFIG_USB_NET_ZAURUS=y
>> +CONFIG_USB_NET_ZAURUS=m
>>  # CONFIG_USB_NET_INT51X1 is not set
>>  # CONFIG_WAN is not set
>>  # CONFIG_PPP is not set
>> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>>  #
>>  # Userland interfaces
>>  #
>> -CONFIG_INPUT_MOUSEDEV=y
>> +CONFIG_INPUT_MOUSEDEV=m
>>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
>> -CONFIG_INPUT_JOYDEV=y
>> +CONFIG_INPUT_JOYDEV=m
>>  CONFIG_INPUT_EVDEV=y
>>  # CONFIG_INPUT_EVBUG is not set
>>
>> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>>  CONFIG_KEYBOARD_TWL4030=y
>>  # CONFIG_KEYBOARD_XTKBD is not set
>>  CONFIG_INPUT_MOUSE=y
>> -CONFIG_MOUSE_PS2=y
>> +CONFIG_MOUSE_PS2=m
>>  CONFIG_MOUSE_PS2_ALPS=y
>>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>>  CONFIG_MOUSE_PS2_SYNAPTICS=y
>> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>>  # CONFIG_INPUT_JOYSTICK is not set
>>  # CONFIG_INPUT_TABLET is not set
>>  CONFIG_INPUT_TOUCHSCREEN=y
>> -CONFIG_TOUCHSCREEN_ADS7846=y
>> +CONFIG_TOUCHSCREEN_ADS7846=m
>>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
>> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>>  #
>>  CONFIG_SERIAL_8250=y
>>  CONFIG_SERIAL_8250_CONSOLE=y
>> -CONFIG_SERIAL_8250_NR_UARTS=32
>> +CONFIG_SERIAL_8250_NR_UARTS=4
>>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>>  CONFIG_SERIAL_8250_EXTENDED=y
>>  CONFIG_SERIAL_8250_MANY_PORTS=y
>> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>>  # CONFIG_LEGACY_PTYS is not set
>>  # CONFIG_IPMI_HANDLER is not set
>> -CONFIG_HW_RANDOM=y
>> +CONFIG_HW_RANDOM=m
>>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
>> -CONFIG_HW_RANDOM_OMAP=y
>> +CONFIG_HW_RANDOM_OMAP=m
>>  # CONFIG_R3964 is not set
>>  # CONFIG_RAW_DRIVER is not set
>>  # CONFIG_TCG_TPM is not set
>> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>>  #
>>  # CONFIG_SPI_BITBANG is not set
>>  # CONFIG_SPI_GPIO is not set
>> -CONFIG_SPI_OMAP24XX=y
>> +CONFIG_SPI_OMAP24XX=m
>>  # CONFIG_SPI_XILINX is not set
>>  # CONFIG_SPI_DESIGNWARE is not set
>>
>> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>>  #
>>  # AC97 GPIO expanders:
>>  #
>> -CONFIG_W1=y
>> +CONFIG_W1=m
>>  CONFIG_W1_CON=y
>>
>>  #
>> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>>  # CONFIG_W1_SLAVE_DS2433 is not set
>>  # CONFIG_W1_SLAVE_DS2760 is not set
>>  # CONFIG_W1_SLAVE_BQ27000 is not set
>> -CONFIG_POWER_SUPPLY=y
>> +CONFIG_POWER_SUPPLY=m
>>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>>  # CONFIG_PDA_POWER is not set
>>  # CONFIG_BATTERY_DS2760 is not set
>>  # CONFIG_BATTERY_DS2782 is not set
>>  # CONFIG_BATTERY_BQ27x00 is not set
>>  # CONFIG_BATTERY_MAX17040 is not set
>> -CONFIG_HWMON=y
>> +CONFIG_HWMON=m
>>  # CONFIG_HWMON_VID is not set
>>  # CONFIG_HWMON_DEBUG_CHIP is not set
>>
>> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>>  # Watchdog Device Drivers
>>  #
>>  # CONFIG_SOFT_WATCHDOG is not set
>> -CONFIG_OMAP_WATCHDOG=y
>> -CONFIG_TWL4030_WATCHDOG=y
>> +CONFIG_OMAP_WATCHDOG=m
>> +CONFIG_TWL4030_WATCHDOG=m
>>
>>  #
>>  # USB-based Watchdog Cards
>> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>>  # CONFIG_TPS65010 is not set
>>  # CONFIG_MENELAUS is not set
>>  CONFIG_TWL4030_CORE=y
>> -# CONFIG_TWL4030_POWER is not set
>> +CONFIG_TWL4030_POWER=y
>>  CONFIG_TWL4030_CODEC=y
>>  # CONFIG_MFD_TMIO is not set
>>  # CONFIG_MFD_T7L66XB is not set
>> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>>  #
>>  # CONFIG_VGASTATE is not set
>>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
>> -CONFIG_FB=y
>> +CONFIG_FB=m
>>  CONFIG_FIRMWARE_EDID=y
>>  # CONFIG_FB_DDC is not set
>>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
>> -CONFIG_FB_CFB_FILLRECT=y
>> -CONFIG_FB_CFB_COPYAREA=y
>> -CONFIG_FB_CFB_IMAGEBLIT=y
>> +CONFIG_FB_CFB_FILLRECT=m
>> +CONFIG_FB_CFB_COPYAREA=m
>> +CONFIG_FB_CFB_IMAGEBLIT=m
>>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>>  # CONFIG_FB_SYS_FILLRECT is not set
>>  # CONFIG_FB_SYS_COPYAREA is not set
>> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>>  # CONFIG_FB_METRONOME is not set
>>  # CONFIG_FB_MB862XX is not set
>>  # CONFIG_FB_BROADSHEET is not set
>> -CONFIG_FB_OMAP=y
>>  CONFIG_FB_OMAP_LCD_VGA=y
>> -# CONFIG_FB_OMAP_031M3R is not set
>> -# CONFIG_FB_OMAP_048M3R is not set
>> -CONFIG_FB_OMAP_079M3R=y
>> -# CONFIG_FB_OMAP_092M9R is not set
>> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
>> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
>> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
>> -# CONFIG_OMAP2_DSS is not set
>> +CONFIG_OMAP2_VRAM=y
>> +CONFIG_OMAP2_VRFB=y
>> +CONFIG_OMAP2_DSS=m
>> +CONFIG_OMAP2_VRAM_SIZE=4
>> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
>> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
>> +# CONFIG_OMAP2_DSS_RFBI is not set
>> +CONFIG_OMAP2_DSS_VENC=y
>> +# CONFIG_OMAP2_DSS_SDI is not set
>> +# CONFIG_OMAP2_DSS_DSI is not set
>> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
>> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
>> +CONFIG_FB_OMAP2=m
>> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
>> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
>> +CONFIG_FB_OMAP2_NUM_FBS=3
>> +
>> +#
>> +# OMAP2/3 Display Device Drivers
>> +#
>> +CONFIG_PANEL_GENERIC=m
>> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
>> -CONFIG_LCD_CLASS_DEVICE=y
>> +CONFIG_LCD_CLASS_DEVICE=m
>>  # CONFIG_LCD_LMS283GF05 is not set
>>  # CONFIG_LCD_LTV350QV is not set
>>  # CONFIG_LCD_ILI9320 is not set
>>  # CONFIG_LCD_TDO24M is not set
>>  # CONFIG_LCD_VGG2432A4 is not set
>> -CONFIG_LCD_PLATFORM=y
>> +CONFIG_LCD_PLATFORM=m
>>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>>  CONFIG_BACKLIGHT_GENERIC=y
>>
>> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>>  #
>>  # CONFIG_VGA_CONSOLE is not set
>>  CONFIG_DUMMY_CONSOLE=y
>> -CONFIG_FRAMEBUFFER_CONSOLE=y
>> +CONFIG_FRAMEBUFFER_CONSOLE=m
>>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>>  CONFIG_FONTS=y
>> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>>  CONFIG_SND=y
>>  CONFIG_SND_TIMER=y
>>  CONFIG_SND_PCM=y
>> -CONFIG_SND_HWDEP=y
>> -CONFIG_SND_RAWMIDI=y
>> +CONFIG_SND_HWDEP=m
>> +CONFIG_SND_RAWMIDI=m
>>  CONFIG_SND_JACK=y
>>  # CONFIG_SND_SEQUENCER is not set
>>  CONFIG_SND_OSSEMUL=y
>> -CONFIG_SND_MIXER_OSS=y
>> -CONFIG_SND_PCM_OSS=y
>> +CONFIG_SND_MIXER_OSS=m
>> +CONFIG_SND_PCM_OSS=m
>>  CONFIG_SND_PCM_OSS_PLUGINS=y
>>  # CONFIG_SND_HRTIMER is not set
>>  # CONFIG_SND_DYNAMIC_MINORS is not set
>> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>>  CONFIG_SND_ARM=y
>>  CONFIG_SND_SPI=y
>>  CONFIG_SND_USB=y
>> -CONFIG_SND_USB_AUDIO=y
>> +CONFIG_SND_USB_AUDIO=m
>>  # CONFIG_SND_USB_CAIAQ is not set
>>  CONFIG_SND_SOC=y
>>  CONFIG_SND_OMAP_SOC=y
>> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>>  #
>>  # USB Input Devices
>>  #
>> -CONFIG_USB_HID=y
>> +CONFIG_USB_HID=m
>>  # CONFIG_HID_PID is not set
>>  # CONFIG_USB_HIDDEV is not set
>>
>>  #
>> +# USB HID Boot Protocol drivers
>> +#
>> +# CONFIG_USB_KBD is not set
>> +# CONFIG_USB_MOUSE is not set
>> +
>> +#
>>  # Special HID drivers
>>  #
>>  # CONFIG_HID_A4TECH is not set
>> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>>  CONFIG_USB_ARCH_HAS_HCD=y
>>  CONFIG_USB_ARCH_HAS_OHCI=y
>>  CONFIG_USB_ARCH_HAS_EHCI=y
>> -CONFIG_USB=y
>> +CONFIG_USB=m
>>  CONFIG_USB_DEBUG=y
>>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>>
>> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>>  CONFIG_USB_OTG=y
>>  # CONFIG_USB_OTG_WHITELIST is not set
>>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
>> -CONFIG_USB_MON=y
>> +CONFIG_USB_MON=m
>>  # CONFIG_USB_WUSB is not set
>>  # CONFIG_USB_WUSB_CBAF is not set
>>
>> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>>  # CONFIG_USB_SL811_HCD is not set
>>  # CONFIG_USB_R8A66597_HCD is not set
>>  # CONFIG_USB_HWA_HCD is not set
>> -CONFIG_USB_MUSB_HDRC=y
>> +CONFIG_USB_MUSB_HDRC=m
>>  CONFIG_USB_MUSB_SOC=y
>>
>>  #
>> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>>  #
>>  # CONFIG_USB_ACM is not set
>>  # CONFIG_USB_PRINTER is not set
>> -CONFIG_USB_WDM=y
>> +CONFIG_USB_WDM=m
>>  # CONFIG_USB_TMC is not set
>>
>>  #
>> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>>  #
>>  # also be needed; see USB_STORAGE Help for more info
>>  #
>> -CONFIG_USB_STORAGE=y
>> +CONFIG_USB_STORAGE=m
>>  # CONFIG_USB_STORAGE_DEBUG is not set
>>  # CONFIG_USB_STORAGE_DATAFAB is not set
>>  # CONFIG_USB_STORAGE_FREECOM is not set
>> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>>  # CONFIG_USB_LD is not set
>>  # CONFIG_USB_TRANCEVIBRATOR is not set
>>  # CONFIG_USB_IOWARRIOR is not set
>> -CONFIG_USB_TEST=y
>> +CONFIG_USB_TEST=m
>>  # CONFIG_USB_ISIGHTFW is not set
>>  # CONFIG_USB_VST is not set
>> -CONFIG_USB_GADGET=y
>> +CONFIG_USB_GADGET=m
>>  CONFIG_USB_GADGET_DEBUG=y
>>  CONFIG_USB_GADGET_DEBUG_FILES=y
>>  CONFIG_USB_GADGET_DEBUG_FS=y
>> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>>  # CONFIG_USB_GPIO_VBUS is not set
>>  # CONFIG_ISP1301_OMAP is not set
>>  # CONFIG_USB_ULPI is not set
>> -CONFIG_TWL4030_USB=y
>> -CONFIG_NOP_USB_XCEIV=y
>> +CONFIG_TWL4030_USB=m
>> +CONFIG_NOP_USB_XCEIV=m
>>  CONFIG_MMC=y
>>  # CONFIG_MMC_DEBUG is not set
>>  CONFIG_MMC_UNSAFE_RESUME=y
>> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>>  #
>>  # MMC/SD/SDIO Card Drivers
>>  #
>> -CONFIG_MMC_BLOCK=y
>> +CONFIG_MMC_BLOCK=m
>>  CONFIG_MMC_BLOCK_BOUNCE=y
>> -CONFIG_SDIO_UART=y
>> +CONFIG_SDIO_UART=m
>>  # CONFIG_MMC_TEST is not set
>>
>>  #
>> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>>  #
>>  # CONFIG_MMC_SDHCI is not set
>>  # CONFIG_MMC_OMAP is not set
>> -CONFIG_MMC_OMAP_HS=y
>> +CONFIG_MMC_OMAP_HS=m
>>  # CONFIG_MMC_AT91 is not set
>>  # CONFIG_MMC_ATMELMCI is not set
>>  # CONFIG_MMC_SPI is not set
>> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>>  #
>>  # CONFIG_ACCESSIBILITY is not set
>>  CONFIG_RTC_LIB=y
>> -CONFIG_RTC_CLASS=y
>> -CONFIG_RTC_HCTOSYS=y
>> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
>> -# CONFIG_RTC_DEBUG is not set
>> +CONFIG_RTC_CLASS=m
>>
>>  #
>>  # RTC interfaces
>> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>>  # CONFIG_RTC_DRV_PCF8583 is not set
>>  # CONFIG_RTC_DRV_M41T80 is not set
>>  # CONFIG_RTC_DRV_BQ32K is not set
>> -CONFIG_RTC_DRV_TWL4030=y
>> +CONFIG_RTC_DRV_TWL4030=m
>>  # CONFIG_RTC_DRV_S35390A is not set
>>  # CONFIG_RTC_DRV_FM3130 is not set
>>  # CONFIG_RTC_DRV_RX8581 is not set
>> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>>  # CONFIG_STAGING is not set
>>
>>  #
>> +# CBUS support
>> +#
>> +# CONFIG_CBUS is not set
>> +
>> +#
>>  # File systems
>>  #
>>  CONFIG_EXT2_FS=y
>> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>>  CONFIG_SCHEDSTATS=y
>>  CONFIG_TIMER_STATS=y
>>  # CONFIG_DEBUG_OBJECTS is not set
>> -# CONFIG_DEBUG_SLAB is not set
>>  # CONFIG_DEBUG_KMEMLEAK is not set
>> +CONFIG_DEBUG_PREEMPT=y
>>  # CONFIG_DEBUG_RT_MUTEXES is not set
>>  # CONFIG_RT_MUTEX_TESTER is not set
>>  CONFIG_DEBUG_SPINLOCK=y
>> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>>  # CONFIG_BOOT_PRINTK_DELAY is not set
>>  # CONFIG_RCU_TORTURE_TEST is not set
>>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
>> -# CONFIG_KPROBES_SANITY_TEST is not set
>>  # CONFIG_BACKTRACE_SELF_TEST is not set
>>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
>> -# CONFIG_LKDTM is not set
>>  # CONFIG_FAULT_INJECTION is not set
>>  # CONFIG_LATENCYTOP is not set
>>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
>> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>>  CONFIG_FTRACE=y
>>  # CONFIG_FUNCTION_TRACER is not set
>>  # CONFIG_IRQSOFF_TRACER is not set
>> +# CONFIG_PREEMPT_TRACER is not set
>>  # CONFIG_SCHED_TRACER is not set
>>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>>  # CONFIG_BOOT_TRACER is not set
>> --
>> 1.6.6
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>
> -- 
> Regards,
> Nishanth Menon

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
  2010-01-30  2:01 ` Nishanth Menon
  2010-02-01 16:09 ` Madhusudhan
@ 2010-02-01 19:49 ` Olof Johansson
  2010-02-01 20:20   ` Kevin Hilman
  2010-02-01 20:52 ` Kevin Hilman
  2010-02-01 21:39 ` Madhusudhan
  4 siblings, 1 reply; 12+ messages in thread
From: Olof Johansson @ 2010-02-01 19:49 UTC (permalink / raw)
  To: Kevin Hilman; +Cc: linux-omap

On Fri, Jan 29, 2010 at 04:26:56PM -0800, Kevin Hilman wrote:
> Update omap3_defconfig to work towards a minimal kernel by building
> most things as modules.  Some drivers that cannot currently be built
> as modules and need to be fixed:

Why? I introduced the omap3_defconfig with the intent of making it as
inclusive as possible, to catch build errors and build a common binary
for many platforms. It's the only OMAP defconfig that Stephen Rothwell
builds as part of a linux-next cycle, and it will as such need to catch
build errors when others break ARM/OMAP.

> - MMC: platform code uses MMC core regulator functions directly
> - ASoC: drivers call omap_ctrl_[read|write] directly
> 
> In addition some additional changes:
> 
> - use new SLUB allocator instead of SLAB (increased debugability)
> - compile with PREEMPT enabled by default
> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> - disable CPUfreq: not yet supported in mainline
> - disable PM_DEBUG_VERBOSE
> - enable fb/DSS2 as modules
> - disable Kprobes
> 
> zImage size comparison
> before: 3160272
> after:  2610108
> 
> Some ideas for reducing this further:
> - fix MMC and ASoC, then build those as modules
> - disable all the kernel debug features
> - convert MTD and all flash fs to modules
> 
> Then, we should have platform specific initramfs configs so rootfs
> from flash, MMC, etc. could be done using modules in initramfs.

I'm all for allowing an "allmodconfig" kernel to be booted, and it's good
to clear up some of these dependencies. But I'd prefer if it wasn't done
under omap3_defconfig. :)


-Olof


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-02-01 19:49 ` Olof Johansson
@ 2010-02-01 20:20   ` Kevin Hilman
  2010-02-01 20:37     ` Olof Johansson
  0 siblings, 1 reply; 12+ messages in thread
From: Kevin Hilman @ 2010-02-01 20:20 UTC (permalink / raw)
  To: Olof Johansson; +Cc: linux-omap

Olof Johansson <olof@lixom.net> writes:

> On Fri, Jan 29, 2010 at 04:26:56PM -0800, Kevin Hilman wrote:
>> Update omap3_defconfig to work towards a minimal kernel by building
>> most things as modules.  Some drivers that cannot currently be built
>> as modules and need to be fixed:
>
> Why? I introduced the omap3_defconfig with the intent of making it as
> inclusive as possible, to catch build errors and build a common binary
> for many platforms. 

That's my goal too, as I regularly test the same kernel (in my case
PM-enabled) on multiple OMAP3 boards.  The only additional goal I have
is to the kernel as small as possible and build most things as
modules.

I don't change what gets included in the build, I only moved some
things from being built in to be built as modules.  Doing 'make
[uz]Image modules' will still catch all the build errors and build a
common binary.

> It's the only OMAP defconfig that Stephen Rothwell
> builds as part of a linux-next cycle, and it will as such need to catch
> build errors when others break ARM/OMAP.

If linux-next is not also building modules for OMAP, we need to
request that it does.  It does so for other platforms.

>
>> - MMC: platform code uses MMC core regulator functions directly
>> - ASoC: drivers call omap_ctrl_[read|write] directly
>> 
>> In addition some additional changes:
>> 
>> - use new SLUB allocator instead of SLAB (increased debugability)
>> - compile with PREEMPT enabled by default
>> - disable OABI_COMPAT.  We should not pretend to support this IMHO
>> - disable CPUfreq: not yet supported in mainline
>> - disable PM_DEBUG_VERBOSE
>> - enable fb/DSS2 as modules
>> - disable Kprobes
>> 
>> zImage size comparison
>> before: 3160272
>> after:  2610108
>> 
>> Some ideas for reducing this further:
>> - fix MMC and ASoC, then build those as modules
>> - disable all the kernel debug features
>> - convert MTD and all flash fs to modules
>> 
>> Then, we should have platform specific initramfs configs so rootfs
>> from flash, MMC, etc. could be done using modules in initramfs.
>
> I'm all for allowing an "allmodconfig" kernel to be booted, and it's good
> to clear up some of these dependencies. But I'd prefer if it wasn't done
> under omap3_defconfig. :)

Why not?

Building a monolithic kernel for multiple boards leads to lots of
wasted memory and slower boot time.

At a minimum, I'd at least like to get to "build everything except
possible root filesystems as modules" kernel.

Kevin

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-02-01 20:20   ` Kevin Hilman
@ 2010-02-01 20:37     ` Olof Johansson
  0 siblings, 0 replies; 12+ messages in thread
From: Olof Johansson @ 2010-02-01 20:37 UTC (permalink / raw)
  To: Kevin Hilman; +Cc: linux-omap

On Mon, Feb 01, 2010 at 12:20:30PM -0800, Kevin Hilman wrote:
> Olof Johansson <olof@lixom.net> writes:
> 
> > On Fri, Jan 29, 2010 at 04:26:56PM -0800, Kevin Hilman wrote:
> >> Update omap3_defconfig to work towards a minimal kernel by building
> >> most things as modules.  Some drivers that cannot currently be built
> >> as modules and need to be fixed:
> >
> > Why? I introduced the omap3_defconfig with the intent of making it as
> > inclusive as possible, to catch build errors and build a common binary
> > for many platforms. 
> 
> That's my goal too, as I regularly test the same kernel (in my case
> PM-enabled) on multiple OMAP3 boards.  The only additional goal I have
> is to the kernel as small as possible and build most things as
> modules.

The size of the kernel doesn't bother me as much, I would much rather have
a single image of a few hundred KB more, than having the hassle of getting
the modules over onto each target board for each build.

> I don't change what gets included in the build, I only moved some
> things from being built in to be built as modules.  Doing 'make
> [uz]Image modules' will still catch all the build errors and build a
> common binary.

With the below exception of root filesystems that you mentioned, I think
I can agree to some extent :). Your original email read to me as if you
wanted to require ramdisks to even mount root filesystems, which I think
is taking it too far.

[See rest of reply]

> > It's the only OMAP defconfig that Stephen Rothwell
> > builds as part of a linux-next cycle, and it will as such need to catch
> > build errors when others break ARM/OMAP.
> 
> If linux-next is not also building modules for OMAP, we need to
> request that it does.  It does so for other platforms.

Ah, maybe it doesn't if the regular kernel target fails, and I just
looked at some of the last... 9 failed builds.  Which sort of makes me
wonder if anyone cares about it in the first place. I don't poll the
kisskb status page myself; I'll follow up with Stephen and see if he
can add linux-omap to the cc list on build notifications (if he has one).

> >> - MMC: platform code uses MMC core regulator functions directly
> >> - ASoC: drivers call omap_ctrl_[read|write] directly
> >> 
> >> In addition some additional changes:
> >> 
> >> - use new SLUB allocator instead of SLAB (increased debugability)
> >> - compile with PREEMPT enabled by default
> >> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> >> - disable CPUfreq: not yet supported in mainline
> >> - disable PM_DEBUG_VERBOSE
> >> - enable fb/DSS2 as modules
> >> - disable Kprobes
> >> 
> >> zImage size comparison
> >> before: 3160272
> >> after:  2610108
> >> 
> >> Some ideas for reducing this further:
> >> - fix MMC and ASoC, then build those as modules
> >> - disable all the kernel debug features
> >> - convert MTD and all flash fs to modules
> >> 
> >> Then, we should have platform specific initramfs configs so rootfs
> >> from flash, MMC, etc. could be done using modules in initramfs.
> >
> > I'm all for allowing an "allmodconfig" kernel to be booted, and it's good
> > to clear up some of these dependencies. But I'd prefer if it wasn't done
> > under omap3_defconfig. :)
> 
> Why not?
>
> Building a monolithic kernel for multiple boards leads to lots of
> wasted memory and slower boot time.

Anyone who (highly) values memory consumption and boot times should be
doing their own custom defconfig in the first place, or running with
the board-specific one.

> At a minimum, I'd at least like to get to "build everything except
> possible root filesystems as modules" kernel.

I would prefer "build the majority of the drivers needed on most
supported platforms statically", and the keep the one-off or oddball
drivers as modules.


-Olof


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
                   ` (2 preceding siblings ...)
  2010-02-01 19:49 ` Olof Johansson
@ 2010-02-01 20:52 ` Kevin Hilman
  2010-02-01 23:03   ` Mike Turquette
  2010-02-01 21:39 ` Madhusudhan
  4 siblings, 1 reply; 12+ messages in thread
From: Kevin Hilman @ 2010-02-01 20:52 UTC (permalink / raw)
  To: linux-omap

Kevin Hilman <khilman@deeprootsystems.com> writes:

> Update omap3_defconfig to work towards a minimal kernel by building
> most things as modules.  Some drivers that cannot currently be built
> as modules and need to be fixed:
>
> - MMC: platform code uses MMC core regulator functions directly
> - ASoC: drivers call omap_ctrl_[read|write] directly
>
> In addition some additional changes:
>
> - use new SLUB allocator instead of SLAB (increased debugability)
> - compile with PREEMPT enabled by default
> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> - disable CPUfreq: not yet supported in mainline
> - disable PM_DEBUG_VERBOSE
> - enable fb/DSS2 as modules
> - disable Kprobes
>
> zImage size comparison
> before: 3160272
> after:  2610108
>
> Some ideas for reducing this further:
> - fix MMC and ASoC, then build those as modules
> - disable all the kernel debug features
> - convert MTD and all flash fs to modules
>
> Then, we should have platform specific initramfs configs so rootfs
> from flash, MMC, etc. could be done using modules in initramfs.
>
> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

After some objections over what to build as modules, I'll respin this
moving a few less things to modules.  In particular, I'll move
everything to modules except possible rootfs sources (MTD, MMC, etc.)

I'd still like to see movement towards everything as modules though
using initramfs, but can save that for another step.

Kevin


> ---
>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++------------------
>  1 files changed, 112 insertions(+), 103 deletions(-)
>
> diff --git a/arch/arm/configs/omap3_defconfig b/arch/arm/configs/omap3_defconfig
> index 2bc80d7..247f191 100644
> --- a/arch/arm/configs/omap3_defconfig
> +++ b/arch/arm/configs/omap3_defconfig
> @@ -1,7 +1,7 @@
>  #
>  # Automatically generated make config: don't edit
>  # Linux kernel version: 2.6.33-rc5
> -# Tue Jan 26 11:05:31 2010
> +# Fri Jan 29 16:02:40 2010
>  #
>  CONFIG_ARM=y
>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>  #
>  CONFIG_EXPERIMENTAL=y
>  CONFIG_BROKEN_ON_SMP=y
> +CONFIG_LOCK_KERNEL=y
>  CONFIG_INIT_ENV_ARG_LIMIT=32
>  CONFIG_LOCALVERSION=""
>  CONFIG_LOCALVERSION_AUTO=y
> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>  # Kernel Performance Events And Counters
>  #
>  CONFIG_VM_EVENT_COUNTERS=y
> +# CONFIG_SLUB_DEBUG is not set
>  CONFIG_COMPAT_BRK=y
> -CONFIG_SLAB=y
> -# CONFIG_SLUB is not set
> +# CONFIG_SLAB is not set
> +CONFIG_SLUB=y
>  # CONFIG_SLOB is not set
>  CONFIG_PROFILING=y
>  CONFIG_TRACEPOINTS=y
> -CONFIG_OPROFILE=y
> +CONFIG_OPROFILE=m
>  CONFIG_HAVE_OPROFILE=y
> -CONFIG_KPROBES=y
> -CONFIG_KRETPROBES=y
> +# CONFIG_KPROBES is not set
>  CONFIG_HAVE_KPROBES=y
>  CONFIG_HAVE_KRETPROBES=y
>  CONFIG_HAVE_CLK=y
> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>  # CONFIG_GCOV_KERNEL is not set
>  # CONFIG_SLOW_WORK is not set
>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
> -CONFIG_SLABINFO=y
>  CONFIG_RT_MUTEXES=y
>  CONFIG_BASE_SMALL=0
>  CONFIG_MODULES=y
> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>  CONFIG_OMAP_MUX_DEBUG=y
>  CONFIG_OMAP_MUX_WARNINGS=y
>  CONFIG_OMAP_MCBSP=y
> -# CONFIG_OMAP_MBOX_FWK is not set
> +CONFIG_OMAP_MBOX_FWK=m
>  # CONFIG_OMAP_MPU_TIMER is not set
>  CONFIG_OMAP_32K_TIMER=y
>  CONFIG_OMAP_32K_TIMER_HZ=128
> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>  # CONFIG_VMSPLIT_2G is not set
>  # CONFIG_VMSPLIT_1G is not set
>  CONFIG_PAGE_OFFSET=0xC0000000
> -CONFIG_PREEMPT_NONE=y
> +# CONFIG_PREEMPT_NONE is not set
>  # CONFIG_PREEMPT_VOLUNTARY is not set
> -# CONFIG_PREEMPT is not set
> +CONFIG_PREEMPT=y
>  CONFIG_HZ=128
>  # CONFIG_THUMB2_KERNEL is not set
>  CONFIG_AEABI=y
> -CONFIG_OABI_COMPAT=y
> +# CONFIG_OABI_COMPAT is not set
> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>  # CONFIG_HIGHMEM is not set
> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>  #
>  # CPU Power Management
>  #
> -CONFIG_CPU_FREQ=y
> -CONFIG_CPU_FREQ_TABLE=y
> -# CONFIG_CPU_FREQ_DEBUG is not set
> -CONFIG_CPU_FREQ_STAT=y
> -CONFIG_CPU_FREQ_STAT_DETAILS=y
> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
> +# CONFIG_CPU_FREQ is not set
> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>  # CONFIG_CPU_IDLE is not set
>  
>  #
> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>  #
>  CONFIG_PM=y
>  CONFIG_PM_DEBUG=y
> -CONFIG_PM_VERBOSE=y
> +# CONFIG_PM_VERBOSE is not set
>  CONFIG_CAN_PM_TRACE=y
>  CONFIG_PM_SLEEP=y
>  CONFIG_SUSPEND=y
> -# CONFIG_PM_TEST_SUSPEND is not set
>  CONFIG_SUSPEND_FREEZER=y
>  # CONFIG_APM_EMULATION is not set
>  # CONFIG_PM_RUNTIME is not set
> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>  # Network testing
>  #
>  # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_TCPPROBE is not set
>  # CONFIG_NET_DROP_MONITOR is not set
>  # CONFIG_HAMRADIO is not set
>  # CONFIG_CAN is not set
>  # CONFIG_IRDA is not set
> -CONFIG_BT=y
> -CONFIG_BT_L2CAP=y
> -CONFIG_BT_SCO=y
> -CONFIG_BT_RFCOMM=y
> +CONFIG_BT=m
> +CONFIG_BT_L2CAP=m
> +CONFIG_BT_SCO=m
> +CONFIG_BT_RFCOMM=m
>  CONFIG_BT_RFCOMM_TTY=y
> -CONFIG_BT_BNEP=y
> +CONFIG_BT_BNEP=m
>  CONFIG_BT_BNEP_MC_FILTER=y
>  CONFIG_BT_BNEP_PROTO_FILTER=y
> -CONFIG_BT_HIDP=y
> +CONFIG_BT_HIDP=m
>  
>  #
>  # Bluetooth device drivers
>  #
>  # CONFIG_BT_HCIBTUSB is not set
>  # CONFIG_BT_HCIBTSDIO is not set
> -CONFIG_BT_HCIUART=y
> +CONFIG_BT_HCIUART=m
>  CONFIG_BT_HCIUART_H4=y
>  CONFIG_BT_HCIUART_BCSP=y
>  CONFIG_BT_HCIUART_LL=y
> -CONFIG_BT_HCIBCM203X=y
> -CONFIG_BT_HCIBPA10X=y
> +CONFIG_BT_HCIBCM203X=m
> +CONFIG_BT_HCIBPA10X=m
>  # CONFIG_BT_HCIBFUSB is not set
>  # CONFIG_BT_HCIVHCI is not set
>  # CONFIG_BT_MRVL is not set
> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>  # CONFIG_MTD_PHYSMAP is not set
>  # CONFIG_MTD_ARM_INTEGRATOR is not set
> -CONFIG_MTD_OMAP_NOR=y
>  # CONFIG_MTD_PLATRAM is not set
>  
>  #
> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>  # SCSI device support
>  #
>  # CONFIG_RAID_ATTRS is not set
> -CONFIG_SCSI=y
> +CONFIG_SCSI=m
>  CONFIG_SCSI_DMA=y
>  # CONFIG_SCSI_TGT is not set
>  # CONFIG_SCSI_NETLINK is not set
> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>  #
>  # SCSI support type (disk, tape, CD-ROM)
>  #
> -CONFIG_BLK_DEV_SD=y
> +CONFIG_BLK_DEV_SD=m
>  # CONFIG_CHR_DEV_ST is not set
>  # CONFIG_CHR_DEV_OSST is not set
>  # CONFIG_BLK_DEV_SR is not set
> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>  # CONFIG_DM9000 is not set
>  # CONFIG_ENC28J60 is not set
>  # CONFIG_ETHOC is not set
> -# CONFIG_SMC911X is not set
> +CONFIG_SMC911X=y
>  CONFIG_SMSC911X=y
>  # CONFIG_DNET is not set
>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>  # CONFIG_B43LEGACY is not set
>  # CONFIG_HOSTAP is not set
>  # CONFIG_IWM is not set
> -CONFIG_LIBERTAS=y
> -CONFIG_LIBERTAS_USB=y
> -CONFIG_LIBERTAS_SDIO=y
> +CONFIG_LIBERTAS=m
> +CONFIG_LIBERTAS_USB=m
> +CONFIG_LIBERTAS_SDIO=m
>  # CONFIG_LIBERTAS_SPI is not set
>  CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_P54_COMMON is not set
> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_USB_KAWETH is not set
>  # CONFIG_USB_PEGASUS is not set
>  # CONFIG_USB_RTL8150 is not set
> -CONFIG_USB_USBNET=y
> -CONFIG_USB_NET_AX8817X=y
> -CONFIG_USB_NET_CDCETHER=y
> +CONFIG_USB_USBNET=m
> +CONFIG_USB_NET_AX8817X=m
> +CONFIG_USB_NET_CDCETHER=m
>  # CONFIG_USB_NET_CDC_EEM is not set
>  # CONFIG_USB_NET_DM9601 is not set
>  # CONFIG_USB_NET_SMSC95XX is not set
>  # CONFIG_USB_NET_GL620A is not set
> -CONFIG_USB_NET_NET1080=y
> +CONFIG_USB_NET_NET1080=m
>  # CONFIG_USB_NET_PLUSB is not set
>  # CONFIG_USB_NET_MCS7830 is not set
>  # CONFIG_USB_NET_RNDIS_HOST is not set
> -CONFIG_USB_NET_CDC_SUBSET=y
> +CONFIG_USB_NET_CDC_SUBSET=m
>  CONFIG_USB_ALI_M5632=y
>  CONFIG_USB_AN2720=y
>  CONFIG_USB_BELKIN=y
>  CONFIG_USB_ARMLINUX=y
>  CONFIG_USB_EPSON2888=y
>  CONFIG_USB_KC2190=y
> -CONFIG_USB_NET_ZAURUS=y
> +CONFIG_USB_NET_ZAURUS=m
>  # CONFIG_USB_NET_INT51X1 is not set
>  # CONFIG_WAN is not set
>  # CONFIG_PPP is not set
> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>  #
>  # Userland interfaces
>  #
> -CONFIG_INPUT_MOUSEDEV=y
> +CONFIG_INPUT_MOUSEDEV=m
>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> -CONFIG_INPUT_JOYDEV=y
> +CONFIG_INPUT_JOYDEV=m
>  CONFIG_INPUT_EVDEV=y
>  # CONFIG_INPUT_EVBUG is not set
>  
> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>  CONFIG_KEYBOARD_TWL4030=y
>  # CONFIG_KEYBOARD_XTKBD is not set
>  CONFIG_INPUT_MOUSE=y
> -CONFIG_MOUSE_PS2=y
> +CONFIG_MOUSE_PS2=m
>  CONFIG_MOUSE_PS2_ALPS=y
>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>  CONFIG_MOUSE_PS2_SYNAPTICS=y
> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>  # CONFIG_INPUT_JOYSTICK is not set
>  # CONFIG_INPUT_TABLET is not set
>  CONFIG_INPUT_TOUCHSCREEN=y
> -CONFIG_TOUCHSCREEN_ADS7846=y
> +CONFIG_TOUCHSCREEN_ADS7846=m
>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>  #
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
> -CONFIG_SERIAL_8250_NR_UARTS=32
> +CONFIG_SERIAL_8250_NR_UARTS=4
>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>  CONFIG_SERIAL_8250_EXTENDED=y
>  CONFIG_SERIAL_8250_MANY_PORTS=y
> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>  # CONFIG_LEGACY_PTYS is not set
>  # CONFIG_IPMI_HANDLER is not set
> -CONFIG_HW_RANDOM=y
> +CONFIG_HW_RANDOM=m
>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
> -CONFIG_HW_RANDOM_OMAP=y
> +CONFIG_HW_RANDOM_OMAP=m
>  # CONFIG_R3964 is not set
>  # CONFIG_RAW_DRIVER is not set
>  # CONFIG_TCG_TPM is not set
> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>  #
>  # CONFIG_SPI_BITBANG is not set
>  # CONFIG_SPI_GPIO is not set
> -CONFIG_SPI_OMAP24XX=y
> +CONFIG_SPI_OMAP24XX=m
>  # CONFIG_SPI_XILINX is not set
>  # CONFIG_SPI_DESIGNWARE is not set
>  
> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>  #
>  # AC97 GPIO expanders:
>  #
> -CONFIG_W1=y
> +CONFIG_W1=m
>  CONFIG_W1_CON=y
>  
>  #
> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>  # CONFIG_W1_SLAVE_DS2433 is not set
>  # CONFIG_W1_SLAVE_DS2760 is not set
>  # CONFIG_W1_SLAVE_BQ27000 is not set
> -CONFIG_POWER_SUPPLY=y
> +CONFIG_POWER_SUPPLY=m
>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>  # CONFIG_PDA_POWER is not set
>  # CONFIG_BATTERY_DS2760 is not set
>  # CONFIG_BATTERY_DS2782 is not set
>  # CONFIG_BATTERY_BQ27x00 is not set
>  # CONFIG_BATTERY_MAX17040 is not set
> -CONFIG_HWMON=y
> +CONFIG_HWMON=m
>  # CONFIG_HWMON_VID is not set
>  # CONFIG_HWMON_DEBUG_CHIP is not set
>  
> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>  # Watchdog Device Drivers
>  #
>  # CONFIG_SOFT_WATCHDOG is not set
> -CONFIG_OMAP_WATCHDOG=y
> -CONFIG_TWL4030_WATCHDOG=y
> +CONFIG_OMAP_WATCHDOG=m
> +CONFIG_TWL4030_WATCHDOG=m
>  
>  #
>  # USB-based Watchdog Cards
> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>  # CONFIG_TPS65010 is not set
>  # CONFIG_MENELAUS is not set
>  CONFIG_TWL4030_CORE=y
> -# CONFIG_TWL4030_POWER is not set
> +CONFIG_TWL4030_POWER=y
>  CONFIG_TWL4030_CODEC=y
>  # CONFIG_MFD_TMIO is not set
>  # CONFIG_MFD_T7L66XB is not set
> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>  #
>  # CONFIG_VGASTATE is not set
>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
> -CONFIG_FB=y
> +CONFIG_FB=m
>  CONFIG_FIRMWARE_EDID=y
>  # CONFIG_FB_DDC is not set
>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
> -CONFIG_FB_CFB_FILLRECT=y
> -CONFIG_FB_CFB_COPYAREA=y
> -CONFIG_FB_CFB_IMAGEBLIT=y
> +CONFIG_FB_CFB_FILLRECT=m
> +CONFIG_FB_CFB_COPYAREA=m
> +CONFIG_FB_CFB_IMAGEBLIT=m
>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>  # CONFIG_FB_SYS_FILLRECT is not set
>  # CONFIG_FB_SYS_COPYAREA is not set
> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>  # CONFIG_FB_METRONOME is not set
>  # CONFIG_FB_MB862XX is not set
>  # CONFIG_FB_BROADSHEET is not set
> -CONFIG_FB_OMAP=y
>  CONFIG_FB_OMAP_LCD_VGA=y
> -# CONFIG_FB_OMAP_031M3R is not set
> -# CONFIG_FB_OMAP_048M3R is not set
> -CONFIG_FB_OMAP_079M3R=y
> -# CONFIG_FB_OMAP_092M9R is not set
> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
> -# CONFIG_OMAP2_DSS is not set
> +CONFIG_OMAP2_VRAM=y
> +CONFIG_OMAP2_VRFB=y
> +CONFIG_OMAP2_DSS=m
> +CONFIG_OMAP2_VRAM_SIZE=4
> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
> +# CONFIG_OMAP2_DSS_RFBI is not set
> +CONFIG_OMAP2_DSS_VENC=y
> +# CONFIG_OMAP2_DSS_SDI is not set
> +# CONFIG_OMAP2_DSS_DSI is not set
> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
> +CONFIG_FB_OMAP2=m
> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
> +CONFIG_FB_OMAP2_NUM_FBS=3
> +
> +#
> +# OMAP2/3 Display Device Drivers
> +#
> +CONFIG_PANEL_GENERIC=m
> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
> -CONFIG_LCD_CLASS_DEVICE=y
> +CONFIG_LCD_CLASS_DEVICE=m
>  # CONFIG_LCD_LMS283GF05 is not set
>  # CONFIG_LCD_LTV350QV is not set
>  # CONFIG_LCD_ILI9320 is not set
>  # CONFIG_LCD_TDO24M is not set
>  # CONFIG_LCD_VGG2432A4 is not set
> -CONFIG_LCD_PLATFORM=y
> +CONFIG_LCD_PLATFORM=m
>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>  CONFIG_BACKLIGHT_GENERIC=y
>  
> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>  #
>  # CONFIG_VGA_CONSOLE is not set
>  CONFIG_DUMMY_CONSOLE=y
> -CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_FRAMEBUFFER_CONSOLE=m
>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>  CONFIG_FONTS=y
> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>  CONFIG_SND=y
>  CONFIG_SND_TIMER=y
>  CONFIG_SND_PCM=y
> -CONFIG_SND_HWDEP=y
> -CONFIG_SND_RAWMIDI=y
> +CONFIG_SND_HWDEP=m
> +CONFIG_SND_RAWMIDI=m
>  CONFIG_SND_JACK=y
>  # CONFIG_SND_SEQUENCER is not set
>  CONFIG_SND_OSSEMUL=y
> -CONFIG_SND_MIXER_OSS=y
> -CONFIG_SND_PCM_OSS=y
> +CONFIG_SND_MIXER_OSS=m
> +CONFIG_SND_PCM_OSS=m
>  CONFIG_SND_PCM_OSS_PLUGINS=y
>  # CONFIG_SND_HRTIMER is not set
>  # CONFIG_SND_DYNAMIC_MINORS is not set
> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>  CONFIG_SND_ARM=y
>  CONFIG_SND_SPI=y
>  CONFIG_SND_USB=y
> -CONFIG_SND_USB_AUDIO=y
> +CONFIG_SND_USB_AUDIO=m
>  # CONFIG_SND_USB_CAIAQ is not set
>  CONFIG_SND_SOC=y
>  CONFIG_SND_OMAP_SOC=y
> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>  #
>  # USB Input Devices
>  #
> -CONFIG_USB_HID=y
> +CONFIG_USB_HID=m
>  # CONFIG_HID_PID is not set
>  # CONFIG_USB_HIDDEV is not set
>  
>  #
> +# USB HID Boot Protocol drivers
> +#
> +# CONFIG_USB_KBD is not set
> +# CONFIG_USB_MOUSE is not set
> +
> +#
>  # Special HID drivers
>  #
>  # CONFIG_HID_A4TECH is not set
> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>  CONFIG_USB_ARCH_HAS_HCD=y
>  CONFIG_USB_ARCH_HAS_OHCI=y
>  CONFIG_USB_ARCH_HAS_EHCI=y
> -CONFIG_USB=y
> +CONFIG_USB=m
>  CONFIG_USB_DEBUG=y
>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>  
> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>  CONFIG_USB_OTG=y
>  # CONFIG_USB_OTG_WHITELIST is not set
>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
> -CONFIG_USB_MON=y
> +CONFIG_USB_MON=m
>  # CONFIG_USB_WUSB is not set
>  # CONFIG_USB_WUSB_CBAF is not set
>  
> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>  # CONFIG_USB_SL811_HCD is not set
>  # CONFIG_USB_R8A66597_HCD is not set
>  # CONFIG_USB_HWA_HCD is not set
> -CONFIG_USB_MUSB_HDRC=y
> +CONFIG_USB_MUSB_HDRC=m
>  CONFIG_USB_MUSB_SOC=y
>  
>  #
> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>  #
>  # CONFIG_USB_ACM is not set
>  # CONFIG_USB_PRINTER is not set
> -CONFIG_USB_WDM=y
> +CONFIG_USB_WDM=m
>  # CONFIG_USB_TMC is not set
>  
>  #
> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>  #
>  # also be needed; see USB_STORAGE Help for more info
>  #
> -CONFIG_USB_STORAGE=y
> +CONFIG_USB_STORAGE=m
>  # CONFIG_USB_STORAGE_DEBUG is not set
>  # CONFIG_USB_STORAGE_DATAFAB is not set
>  # CONFIG_USB_STORAGE_FREECOM is not set
> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>  # CONFIG_USB_LD is not set
>  # CONFIG_USB_TRANCEVIBRATOR is not set
>  # CONFIG_USB_IOWARRIOR is not set
> -CONFIG_USB_TEST=y
> +CONFIG_USB_TEST=m
>  # CONFIG_USB_ISIGHTFW is not set
>  # CONFIG_USB_VST is not set
> -CONFIG_USB_GADGET=y
> +CONFIG_USB_GADGET=m
>  CONFIG_USB_GADGET_DEBUG=y
>  CONFIG_USB_GADGET_DEBUG_FILES=y
>  CONFIG_USB_GADGET_DEBUG_FS=y
> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>  # CONFIG_USB_GPIO_VBUS is not set
>  # CONFIG_ISP1301_OMAP is not set
>  # CONFIG_USB_ULPI is not set
> -CONFIG_TWL4030_USB=y
> -CONFIG_NOP_USB_XCEIV=y
> +CONFIG_TWL4030_USB=m
> +CONFIG_NOP_USB_XCEIV=m
>  CONFIG_MMC=y
>  # CONFIG_MMC_DEBUG is not set
>  CONFIG_MMC_UNSAFE_RESUME=y
> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>  #
>  # MMC/SD/SDIO Card Drivers
>  #
> -CONFIG_MMC_BLOCK=y
> +CONFIG_MMC_BLOCK=m
>  CONFIG_MMC_BLOCK_BOUNCE=y
> -CONFIG_SDIO_UART=y
> +CONFIG_SDIO_UART=m
>  # CONFIG_MMC_TEST is not set
>  
>  #
> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>  #
>  # CONFIG_MMC_SDHCI is not set
>  # CONFIG_MMC_OMAP is not set
> -CONFIG_MMC_OMAP_HS=y
> +CONFIG_MMC_OMAP_HS=m
>  # CONFIG_MMC_AT91 is not set
>  # CONFIG_MMC_ATMELMCI is not set
>  # CONFIG_MMC_SPI is not set
> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>  #
>  # CONFIG_ACCESSIBILITY is not set
>  CONFIG_RTC_LIB=y
> -CONFIG_RTC_CLASS=y
> -CONFIG_RTC_HCTOSYS=y
> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> -# CONFIG_RTC_DEBUG is not set
> +CONFIG_RTC_CLASS=m
>  
>  #
>  # RTC interfaces
> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>  # CONFIG_RTC_DRV_PCF8583 is not set
>  # CONFIG_RTC_DRV_M41T80 is not set
>  # CONFIG_RTC_DRV_BQ32K is not set
> -CONFIG_RTC_DRV_TWL4030=y
> +CONFIG_RTC_DRV_TWL4030=m
>  # CONFIG_RTC_DRV_S35390A is not set
>  # CONFIG_RTC_DRV_FM3130 is not set
>  # CONFIG_RTC_DRV_RX8581 is not set
> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>  # CONFIG_STAGING is not set
>  
>  #
> +# CBUS support
> +#
> +# CONFIG_CBUS is not set
> +
> +#
>  # File systems
>  #
>  CONFIG_EXT2_FS=y
> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>  CONFIG_SCHEDSTATS=y
>  CONFIG_TIMER_STATS=y
>  # CONFIG_DEBUG_OBJECTS is not set
> -# CONFIG_DEBUG_SLAB is not set
>  # CONFIG_DEBUG_KMEMLEAK is not set
> +CONFIG_DEBUG_PREEMPT=y
>  # CONFIG_DEBUG_RT_MUTEXES is not set
>  # CONFIG_RT_MUTEX_TESTER is not set
>  CONFIG_DEBUG_SPINLOCK=y
> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>  # CONFIG_BOOT_PRINTK_DELAY is not set
>  # CONFIG_RCU_TORTURE_TEST is not set
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -# CONFIG_KPROBES_SANITY_TEST is not set
>  # CONFIG_BACKTRACE_SELF_TEST is not set
>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
> -# CONFIG_LKDTM is not set
>  # CONFIG_FAULT_INJECTION is not set
>  # CONFIG_LATENCYTOP is not set
>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>  CONFIG_FTRACE=y
>  # CONFIG_FUNCTION_TRACER is not set
>  # CONFIG_IRQSOFF_TRACER is not set
> +# CONFIG_PREEMPT_TRACER is not set
>  # CONFIG_SCHED_TRACER is not set
>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>  # CONFIG_BOOT_TRACER is not set
> -- 
> 1.6.6

^ permalink raw reply	[flat|nested] 12+ messages in thread

* RE: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
                   ` (3 preceding siblings ...)
  2010-02-01 20:52 ` Kevin Hilman
@ 2010-02-01 21:39 ` Madhusudhan
  4 siblings, 0 replies; 12+ messages in thread
From: Madhusudhan @ 2010-02-01 21:39 UTC (permalink / raw)
  To: 'Kevin Hilman', linux-omap



> -----Original Message-----
> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-
> owner@vger.kernel.org] On Behalf Of Kevin Hilman
> Sent: Friday, January 29, 2010 6:27 PM
> To: linux-omap@vger.kernel.org
> Subject: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
> 
> Update omap3_defconfig to work towards a minimal kernel by building
> most things as modules.  Some drivers that cannot currently be built
> as modules and need to be fixed:
> 
> - MMC: platform code uses MMC core regulator functions directly

The below series posted to LO by Adrian fixes this issue. The core regulator
calls are moved into the controller driver.

[PATCH V2 0/10] omap_hsmmc changes V2

Regards,
Madhu

> - ASoC: drivers call omap_ctrl_[read|write] directly
> 
> In addition some additional changes:
> 
> - use new SLUB allocator instead of SLAB (increased debugability)
> - compile with PREEMPT enabled by default
> - disable OABI_COMPAT.  We should not pretend to support this IMHO
> - disable CPUfreq: not yet supported in mainline
> - disable PM_DEBUG_VERBOSE
> - enable fb/DSS2 as modules
> - disable Kprobes
> 
> zImage size comparison
> before: 3160272
> after:  2610108
> 
> Some ideas for reducing this further:
> - fix MMC and ASoC, then build those as modules
> - disable all the kernel debug features
> - convert MTD and all flash fs to modules
> 
> Then, we should have platform specific initramfs configs so rootfs
> from flash, MMC, etc. could be done using modules in initramfs.
> 
> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
> ---
>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++-------------
> -----
>  1 files changed, 112 insertions(+), 103 deletions(-)
> 
> diff --git a/arch/arm/configs/omap3_defconfig
> b/arch/arm/configs/omap3_defconfig
> index 2bc80d7..247f191 100644
> --- a/arch/arm/configs/omap3_defconfig
> +++ b/arch/arm/configs/omap3_defconfig
> @@ -1,7 +1,7 @@
>  #
>  # Automatically generated make config: don't edit
>  # Linux kernel version: 2.6.33-rc5
> -# Tue Jan 26 11:05:31 2010
> +# Fri Jan 29 16:02:40 2010
>  #
>  CONFIG_ARM=y
>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>  #
>  CONFIG_EXPERIMENTAL=y
>  CONFIG_BROKEN_ON_SMP=y
> +CONFIG_LOCK_KERNEL=y
>  CONFIG_INIT_ENV_ARG_LIMIT=32
>  CONFIG_LOCALVERSION=""
>  CONFIG_LOCALVERSION_AUTO=y
> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>  # Kernel Performance Events And Counters
>  #
>  CONFIG_VM_EVENT_COUNTERS=y
> +# CONFIG_SLUB_DEBUG is not set
>  CONFIG_COMPAT_BRK=y
> -CONFIG_SLAB=y
> -# CONFIG_SLUB is not set
> +# CONFIG_SLAB is not set
> +CONFIG_SLUB=y
>  # CONFIG_SLOB is not set
>  CONFIG_PROFILING=y
>  CONFIG_TRACEPOINTS=y
> -CONFIG_OPROFILE=y
> +CONFIG_OPROFILE=m
>  CONFIG_HAVE_OPROFILE=y
> -CONFIG_KPROBES=y
> -CONFIG_KRETPROBES=y
> +# CONFIG_KPROBES is not set
>  CONFIG_HAVE_KPROBES=y
>  CONFIG_HAVE_KRETPROBES=y
>  CONFIG_HAVE_CLK=y
> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>  # CONFIG_GCOV_KERNEL is not set
>  # CONFIG_SLOW_WORK is not set
>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
> -CONFIG_SLABINFO=y
>  CONFIG_RT_MUTEXES=y
>  CONFIG_BASE_SMALL=0
>  CONFIG_MODULES=y
> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>  CONFIG_OMAP_MUX_DEBUG=y
>  CONFIG_OMAP_MUX_WARNINGS=y
>  CONFIG_OMAP_MCBSP=y
> -# CONFIG_OMAP_MBOX_FWK is not set
> +CONFIG_OMAP_MBOX_FWK=m
>  # CONFIG_OMAP_MPU_TIMER is not set
>  CONFIG_OMAP_32K_TIMER=y
>  CONFIG_OMAP_32K_TIMER_HZ=128
> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>  # CONFIG_VMSPLIT_2G is not set
>  # CONFIG_VMSPLIT_1G is not set
>  CONFIG_PAGE_OFFSET=0xC0000000
> -CONFIG_PREEMPT_NONE=y
> +# CONFIG_PREEMPT_NONE is not set
>  # CONFIG_PREEMPT_VOLUNTARY is not set
> -# CONFIG_PREEMPT is not set
> +CONFIG_PREEMPT=y
>  CONFIG_HZ=128
>  # CONFIG_THUMB2_KERNEL is not set
>  CONFIG_AEABI=y
> -CONFIG_OABI_COMPAT=y
> +# CONFIG_OABI_COMPAT is not set
> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>  # CONFIG_HIGHMEM is not set
> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>  #
>  # CPU Power Management
>  #
> -CONFIG_CPU_FREQ=y
> -CONFIG_CPU_FREQ_TABLE=y
> -# CONFIG_CPU_FREQ_DEBUG is not set
> -CONFIG_CPU_FREQ_STAT=y
> -CONFIG_CPU_FREQ_STAT_DETAILS=y
> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
> +# CONFIG_CPU_FREQ is not set
> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>  # CONFIG_CPU_IDLE is not set
> 
>  #
> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>  #
>  CONFIG_PM=y
>  CONFIG_PM_DEBUG=y
> -CONFIG_PM_VERBOSE=y
> +# CONFIG_PM_VERBOSE is not set
>  CONFIG_CAN_PM_TRACE=y
>  CONFIG_PM_SLEEP=y
>  CONFIG_SUSPEND=y
> -# CONFIG_PM_TEST_SUSPEND is not set
>  CONFIG_SUSPEND_FREEZER=y
>  # CONFIG_APM_EMULATION is not set
>  # CONFIG_PM_RUNTIME is not set
> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>  # Network testing
>  #
>  # CONFIG_NET_PKTGEN is not set
> -# CONFIG_NET_TCPPROBE is not set
>  # CONFIG_NET_DROP_MONITOR is not set
>  # CONFIG_HAMRADIO is not set
>  # CONFIG_CAN is not set
>  # CONFIG_IRDA is not set
> -CONFIG_BT=y
> -CONFIG_BT_L2CAP=y
> -CONFIG_BT_SCO=y
> -CONFIG_BT_RFCOMM=y
> +CONFIG_BT=m
> +CONFIG_BT_L2CAP=m
> +CONFIG_BT_SCO=m
> +CONFIG_BT_RFCOMM=m
>  CONFIG_BT_RFCOMM_TTY=y
> -CONFIG_BT_BNEP=y
> +CONFIG_BT_BNEP=m
>  CONFIG_BT_BNEP_MC_FILTER=y
>  CONFIG_BT_BNEP_PROTO_FILTER=y
> -CONFIG_BT_HIDP=y
> +CONFIG_BT_HIDP=m
> 
>  #
>  # Bluetooth device drivers
>  #
>  # CONFIG_BT_HCIBTUSB is not set
>  # CONFIG_BT_HCIBTSDIO is not set
> -CONFIG_BT_HCIUART=y
> +CONFIG_BT_HCIUART=m
>  CONFIG_BT_HCIUART_H4=y
>  CONFIG_BT_HCIUART_BCSP=y
>  CONFIG_BT_HCIUART_LL=y
> -CONFIG_BT_HCIBCM203X=y
> -CONFIG_BT_HCIBPA10X=y
> +CONFIG_BT_HCIBCM203X=m
> +CONFIG_BT_HCIBPA10X=m
>  # CONFIG_BT_HCIBFUSB is not set
>  # CONFIG_BT_HCIVHCI is not set
>  # CONFIG_BT_MRVL is not set
> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>  # CONFIG_MTD_PHYSMAP is not set
>  # CONFIG_MTD_ARM_INTEGRATOR is not set
> -CONFIG_MTD_OMAP_NOR=y
>  # CONFIG_MTD_PLATRAM is not set
> 
>  #
> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>  # SCSI device support
>  #
>  # CONFIG_RAID_ATTRS is not set
> -CONFIG_SCSI=y
> +CONFIG_SCSI=m
>  CONFIG_SCSI_DMA=y
>  # CONFIG_SCSI_TGT is not set
>  # CONFIG_SCSI_NETLINK is not set
> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>  #
>  # SCSI support type (disk, tape, CD-ROM)
>  #
> -CONFIG_BLK_DEV_SD=y
> +CONFIG_BLK_DEV_SD=m
>  # CONFIG_CHR_DEV_ST is not set
>  # CONFIG_CHR_DEV_OSST is not set
>  # CONFIG_BLK_DEV_SR is not set
> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>  # CONFIG_DM9000 is not set
>  # CONFIG_ENC28J60 is not set
>  # CONFIG_ETHOC is not set
> -# CONFIG_SMC911X is not set
> +CONFIG_SMC911X=y
>  CONFIG_SMSC911X=y
>  # CONFIG_DNET is not set
>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>  # CONFIG_B43LEGACY is not set
>  # CONFIG_HOSTAP is not set
>  # CONFIG_IWM is not set
> -CONFIG_LIBERTAS=y
> -CONFIG_LIBERTAS_USB=y
> -CONFIG_LIBERTAS_SDIO=y
> +CONFIG_LIBERTAS=m
> +CONFIG_LIBERTAS_USB=m
> +CONFIG_LIBERTAS_SDIO=m
>  # CONFIG_LIBERTAS_SPI is not set
>  CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_P54_COMMON is not set
> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>  # CONFIG_USB_KAWETH is not set
>  # CONFIG_USB_PEGASUS is not set
>  # CONFIG_USB_RTL8150 is not set
> -CONFIG_USB_USBNET=y
> -CONFIG_USB_NET_AX8817X=y
> -CONFIG_USB_NET_CDCETHER=y
> +CONFIG_USB_USBNET=m
> +CONFIG_USB_NET_AX8817X=m
> +CONFIG_USB_NET_CDCETHER=m
>  # CONFIG_USB_NET_CDC_EEM is not set
>  # CONFIG_USB_NET_DM9601 is not set
>  # CONFIG_USB_NET_SMSC95XX is not set
>  # CONFIG_USB_NET_GL620A is not set
> -CONFIG_USB_NET_NET1080=y
> +CONFIG_USB_NET_NET1080=m
>  # CONFIG_USB_NET_PLUSB is not set
>  # CONFIG_USB_NET_MCS7830 is not set
>  # CONFIG_USB_NET_RNDIS_HOST is not set
> -CONFIG_USB_NET_CDC_SUBSET=y
> +CONFIG_USB_NET_CDC_SUBSET=m
>  CONFIG_USB_ALI_M5632=y
>  CONFIG_USB_AN2720=y
>  CONFIG_USB_BELKIN=y
>  CONFIG_USB_ARMLINUX=y
>  CONFIG_USB_EPSON2888=y
>  CONFIG_USB_KC2190=y
> -CONFIG_USB_NET_ZAURUS=y
> +CONFIG_USB_NET_ZAURUS=m
>  # CONFIG_USB_NET_INT51X1 is not set
>  # CONFIG_WAN is not set
>  # CONFIG_PPP is not set
> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>  #
>  # Userland interfaces
>  #
> -CONFIG_INPUT_MOUSEDEV=y
> +CONFIG_INPUT_MOUSEDEV=m
>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
> -CONFIG_INPUT_JOYDEV=y
> +CONFIG_INPUT_JOYDEV=m
>  CONFIG_INPUT_EVDEV=y
>  # CONFIG_INPUT_EVBUG is not set
> 
> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>  CONFIG_KEYBOARD_TWL4030=y
>  # CONFIG_KEYBOARD_XTKBD is not set
>  CONFIG_INPUT_MOUSE=y
> -CONFIG_MOUSE_PS2=y
> +CONFIG_MOUSE_PS2=m
>  CONFIG_MOUSE_PS2_ALPS=y
>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>  CONFIG_MOUSE_PS2_SYNAPTICS=y
> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>  # CONFIG_INPUT_JOYSTICK is not set
>  # CONFIG_INPUT_TABLET is not set
>  CONFIG_INPUT_TOUCHSCREEN=y
> -CONFIG_TOUCHSCREEN_ADS7846=y
> +CONFIG_TOUCHSCREEN_ADS7846=m
>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>  #
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
> -CONFIG_SERIAL_8250_NR_UARTS=32
> +CONFIG_SERIAL_8250_NR_UARTS=4
>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>  CONFIG_SERIAL_8250_EXTENDED=y
>  CONFIG_SERIAL_8250_MANY_PORTS=y
> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>  # CONFIG_LEGACY_PTYS is not set
>  # CONFIG_IPMI_HANDLER is not set
> -CONFIG_HW_RANDOM=y
> +CONFIG_HW_RANDOM=m
>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
> -CONFIG_HW_RANDOM_OMAP=y
> +CONFIG_HW_RANDOM_OMAP=m
>  # CONFIG_R3964 is not set
>  # CONFIG_RAW_DRIVER is not set
>  # CONFIG_TCG_TPM is not set
> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>  #
>  # CONFIG_SPI_BITBANG is not set
>  # CONFIG_SPI_GPIO is not set
> -CONFIG_SPI_OMAP24XX=y
> +CONFIG_SPI_OMAP24XX=m
>  # CONFIG_SPI_XILINX is not set
>  # CONFIG_SPI_DESIGNWARE is not set
> 
> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>  #
>  # AC97 GPIO expanders:
>  #
> -CONFIG_W1=y
> +CONFIG_W1=m
>  CONFIG_W1_CON=y
> 
>  #
> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>  # CONFIG_W1_SLAVE_DS2433 is not set
>  # CONFIG_W1_SLAVE_DS2760 is not set
>  # CONFIG_W1_SLAVE_BQ27000 is not set
> -CONFIG_POWER_SUPPLY=y
> +CONFIG_POWER_SUPPLY=m
>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>  # CONFIG_PDA_POWER is not set
>  # CONFIG_BATTERY_DS2760 is not set
>  # CONFIG_BATTERY_DS2782 is not set
>  # CONFIG_BATTERY_BQ27x00 is not set
>  # CONFIG_BATTERY_MAX17040 is not set
> -CONFIG_HWMON=y
> +CONFIG_HWMON=m
>  # CONFIG_HWMON_VID is not set
>  # CONFIG_HWMON_DEBUG_CHIP is not set
> 
> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>  # Watchdog Device Drivers
>  #
>  # CONFIG_SOFT_WATCHDOG is not set
> -CONFIG_OMAP_WATCHDOG=y
> -CONFIG_TWL4030_WATCHDOG=y
> +CONFIG_OMAP_WATCHDOG=m
> +CONFIG_TWL4030_WATCHDOG=m
> 
>  #
>  # USB-based Watchdog Cards
> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>  # CONFIG_TPS65010 is not set
>  # CONFIG_MENELAUS is not set
>  CONFIG_TWL4030_CORE=y
> -# CONFIG_TWL4030_POWER is not set
> +CONFIG_TWL4030_POWER=y
>  CONFIG_TWL4030_CODEC=y
>  # CONFIG_MFD_TMIO is not set
>  # CONFIG_MFD_T7L66XB is not set
> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>  #
>  # CONFIG_VGASTATE is not set
>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
> -CONFIG_FB=y
> +CONFIG_FB=m
>  CONFIG_FIRMWARE_EDID=y
>  # CONFIG_FB_DDC is not set
>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
> -CONFIG_FB_CFB_FILLRECT=y
> -CONFIG_FB_CFB_COPYAREA=y
> -CONFIG_FB_CFB_IMAGEBLIT=y
> +CONFIG_FB_CFB_FILLRECT=m
> +CONFIG_FB_CFB_COPYAREA=m
> +CONFIG_FB_CFB_IMAGEBLIT=m
>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>  # CONFIG_FB_SYS_FILLRECT is not set
>  # CONFIG_FB_SYS_COPYAREA is not set
> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>  # CONFIG_FB_METRONOME is not set
>  # CONFIG_FB_MB862XX is not set
>  # CONFIG_FB_BROADSHEET is not set
> -CONFIG_FB_OMAP=y
>  CONFIG_FB_OMAP_LCD_VGA=y
> -# CONFIG_FB_OMAP_031M3R is not set
> -# CONFIG_FB_OMAP_048M3R is not set
> -CONFIG_FB_OMAP_079M3R=y
> -# CONFIG_FB_OMAP_092M9R is not set
> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
> -# CONFIG_OMAP2_DSS is not set
> +CONFIG_OMAP2_VRAM=y
> +CONFIG_OMAP2_VRFB=y
> +CONFIG_OMAP2_DSS=m
> +CONFIG_OMAP2_VRAM_SIZE=4
> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
> +# CONFIG_OMAP2_DSS_RFBI is not set
> +CONFIG_OMAP2_DSS_VENC=y
> +# CONFIG_OMAP2_DSS_SDI is not set
> +# CONFIG_OMAP2_DSS_DSI is not set
> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
> +CONFIG_FB_OMAP2=m
> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
> +CONFIG_FB_OMAP2_NUM_FBS=3
> +
> +#
> +# OMAP2/3 Display Device Drivers
> +#
> +CONFIG_PANEL_GENERIC=m
> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
> -CONFIG_LCD_CLASS_DEVICE=y
> +CONFIG_LCD_CLASS_DEVICE=m
>  # CONFIG_LCD_LMS283GF05 is not set
>  # CONFIG_LCD_LTV350QV is not set
>  # CONFIG_LCD_ILI9320 is not set
>  # CONFIG_LCD_TDO24M is not set
>  # CONFIG_LCD_VGG2432A4 is not set
> -CONFIG_LCD_PLATFORM=y
> +CONFIG_LCD_PLATFORM=m
>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>  CONFIG_BACKLIGHT_GENERIC=y
> 
> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>  #
>  # CONFIG_VGA_CONSOLE is not set
>  CONFIG_DUMMY_CONSOLE=y
> -CONFIG_FRAMEBUFFER_CONSOLE=y
> +CONFIG_FRAMEBUFFER_CONSOLE=m
>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>  CONFIG_FONTS=y
> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>  CONFIG_SND=y
>  CONFIG_SND_TIMER=y
>  CONFIG_SND_PCM=y
> -CONFIG_SND_HWDEP=y
> -CONFIG_SND_RAWMIDI=y
> +CONFIG_SND_HWDEP=m
> +CONFIG_SND_RAWMIDI=m
>  CONFIG_SND_JACK=y
>  # CONFIG_SND_SEQUENCER is not set
>  CONFIG_SND_OSSEMUL=y
> -CONFIG_SND_MIXER_OSS=y
> -CONFIG_SND_PCM_OSS=y
> +CONFIG_SND_MIXER_OSS=m
> +CONFIG_SND_PCM_OSS=m
>  CONFIG_SND_PCM_OSS_PLUGINS=y
>  # CONFIG_SND_HRTIMER is not set
>  # CONFIG_SND_DYNAMIC_MINORS is not set
> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>  CONFIG_SND_ARM=y
>  CONFIG_SND_SPI=y
>  CONFIG_SND_USB=y
> -CONFIG_SND_USB_AUDIO=y
> +CONFIG_SND_USB_AUDIO=m
>  # CONFIG_SND_USB_CAIAQ is not set
>  CONFIG_SND_SOC=y
>  CONFIG_SND_OMAP_SOC=y
> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>  #
>  # USB Input Devices
>  #
> -CONFIG_USB_HID=y
> +CONFIG_USB_HID=m
>  # CONFIG_HID_PID is not set
>  # CONFIG_USB_HIDDEV is not set
> 
>  #
> +# USB HID Boot Protocol drivers
> +#
> +# CONFIG_USB_KBD is not set
> +# CONFIG_USB_MOUSE is not set
> +
> +#
>  # Special HID drivers
>  #
>  # CONFIG_HID_A4TECH is not set
> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>  CONFIG_USB_ARCH_HAS_HCD=y
>  CONFIG_USB_ARCH_HAS_OHCI=y
>  CONFIG_USB_ARCH_HAS_EHCI=y
> -CONFIG_USB=y
> +CONFIG_USB=m
>  CONFIG_USB_DEBUG=y
>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
> 
> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>  CONFIG_USB_OTG=y
>  # CONFIG_USB_OTG_WHITELIST is not set
>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
> -CONFIG_USB_MON=y
> +CONFIG_USB_MON=m
>  # CONFIG_USB_WUSB is not set
>  # CONFIG_USB_WUSB_CBAF is not set
> 
> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>  # CONFIG_USB_SL811_HCD is not set
>  # CONFIG_USB_R8A66597_HCD is not set
>  # CONFIG_USB_HWA_HCD is not set
> -CONFIG_USB_MUSB_HDRC=y
> +CONFIG_USB_MUSB_HDRC=m
>  CONFIG_USB_MUSB_SOC=y
> 
>  #
> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>  #
>  # CONFIG_USB_ACM is not set
>  # CONFIG_USB_PRINTER is not set
> -CONFIG_USB_WDM=y
> +CONFIG_USB_WDM=m
>  # CONFIG_USB_TMC is not set
> 
>  #
> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>  #
>  # also be needed; see USB_STORAGE Help for more info
>  #
> -CONFIG_USB_STORAGE=y
> +CONFIG_USB_STORAGE=m
>  # CONFIG_USB_STORAGE_DEBUG is not set
>  # CONFIG_USB_STORAGE_DATAFAB is not set
>  # CONFIG_USB_STORAGE_FREECOM is not set
> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>  # CONFIG_USB_LD is not set
>  # CONFIG_USB_TRANCEVIBRATOR is not set
>  # CONFIG_USB_IOWARRIOR is not set
> -CONFIG_USB_TEST=y
> +CONFIG_USB_TEST=m
>  # CONFIG_USB_ISIGHTFW is not set
>  # CONFIG_USB_VST is not set
> -CONFIG_USB_GADGET=y
> +CONFIG_USB_GADGET=m
>  CONFIG_USB_GADGET_DEBUG=y
>  CONFIG_USB_GADGET_DEBUG_FILES=y
>  CONFIG_USB_GADGET_DEBUG_FS=y
> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>  # CONFIG_USB_GPIO_VBUS is not set
>  # CONFIG_ISP1301_OMAP is not set
>  # CONFIG_USB_ULPI is not set
> -CONFIG_TWL4030_USB=y
> -CONFIG_NOP_USB_XCEIV=y
> +CONFIG_TWL4030_USB=m
> +CONFIG_NOP_USB_XCEIV=m
>  CONFIG_MMC=y
>  # CONFIG_MMC_DEBUG is not set
>  CONFIG_MMC_UNSAFE_RESUME=y
> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>  #
>  # MMC/SD/SDIO Card Drivers
>  #
> -CONFIG_MMC_BLOCK=y
> +CONFIG_MMC_BLOCK=m
>  CONFIG_MMC_BLOCK_BOUNCE=y
> -CONFIG_SDIO_UART=y
> +CONFIG_SDIO_UART=m
>  # CONFIG_MMC_TEST is not set
> 
>  #
> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>  #
>  # CONFIG_MMC_SDHCI is not set
>  # CONFIG_MMC_OMAP is not set
> -CONFIG_MMC_OMAP_HS=y
> +CONFIG_MMC_OMAP_HS=m
>  # CONFIG_MMC_AT91 is not set
>  # CONFIG_MMC_ATMELMCI is not set
>  # CONFIG_MMC_SPI is not set
> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>  #
>  # CONFIG_ACCESSIBILITY is not set
>  CONFIG_RTC_LIB=y
> -CONFIG_RTC_CLASS=y
> -CONFIG_RTC_HCTOSYS=y
> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
> -# CONFIG_RTC_DEBUG is not set
> +CONFIG_RTC_CLASS=m
> 
>  #
>  # RTC interfaces
> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>  # CONFIG_RTC_DRV_PCF8583 is not set
>  # CONFIG_RTC_DRV_M41T80 is not set
>  # CONFIG_RTC_DRV_BQ32K is not set
> -CONFIG_RTC_DRV_TWL4030=y
> +CONFIG_RTC_DRV_TWL4030=m
>  # CONFIG_RTC_DRV_S35390A is not set
>  # CONFIG_RTC_DRV_FM3130 is not set
>  # CONFIG_RTC_DRV_RX8581 is not set
> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>  # CONFIG_STAGING is not set
> 
>  #
> +# CBUS support
> +#
> +# CONFIG_CBUS is not set
> +
> +#
>  # File systems
>  #
>  CONFIG_EXT2_FS=y
> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>  CONFIG_SCHEDSTATS=y
>  CONFIG_TIMER_STATS=y
>  # CONFIG_DEBUG_OBJECTS is not set
> -# CONFIG_DEBUG_SLAB is not set
>  # CONFIG_DEBUG_KMEMLEAK is not set
> +CONFIG_DEBUG_PREEMPT=y
>  # CONFIG_DEBUG_RT_MUTEXES is not set
>  # CONFIG_RT_MUTEX_TESTER is not set
>  CONFIG_DEBUG_SPINLOCK=y
> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>  # CONFIG_BOOT_PRINTK_DELAY is not set
>  # CONFIG_RCU_TORTURE_TEST is not set
>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
> -# CONFIG_KPROBES_SANITY_TEST is not set
>  # CONFIG_BACKTRACE_SELF_TEST is not set
>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
> -# CONFIG_LKDTM is not set
>  # CONFIG_FAULT_INJECTION is not set
>  # CONFIG_LATENCYTOP is not set
>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>  CONFIG_FTRACE=y
>  # CONFIG_FUNCTION_TRACER is not set
>  # CONFIG_IRQSOFF_TRACER is not set
> +# CONFIG_PREEMPT_TRACER is not set
>  # CONFIG_SCHED_TRACER is not set
>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>  # CONFIG_BOOT_TRACER is not set
> --
> 1.6.6
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-02-01 20:52 ` Kevin Hilman
@ 2010-02-01 23:03   ` Mike Turquette
  0 siblings, 0 replies; 12+ messages in thread
From: Mike Turquette @ 2010-02-01 23:03 UTC (permalink / raw)
  To: Kevin Hilman; +Cc: linux-omap@vger.kernel.org

Kevin Hilman wrote:
> Kevin Hilman <khilman@deeprootsystems.com> writes:
> 
>> Update omap3_defconfig to work towards a minimal kernel by building
>> most things as modules.  Some drivers that cannot currently be built
>> as modules and need to be fixed:
>>
>> - MMC: platform code uses MMC core regulator functions directly
>> - ASoC: drivers call omap_ctrl_[read|write] directly
>>
>> In addition some additional changes:
>>
>> - use new SLUB allocator instead of SLAB (increased debugability)
>> - compile with PREEMPT enabled by default
>> - disable OABI_COMPAT.  We should not pretend to support this IMHO
>> - disable CPUfreq: not yet supported in mainline
>> - disable PM_DEBUG_VERBOSE
>> - enable fb/DSS2 as modules
>> - disable Kprobes
>>
>> zImage size comparison
>> before: 3160272
>> after:  2610108
>>
>> Some ideas for reducing this further:
>> - fix MMC and ASoC, then build those as modules
>> - disable all the kernel debug features
>> - convert MTD and all flash fs to modules
>>
>> Then, we should have platform specific initramfs configs so rootfs
>> from flash, MMC, etc. could be done using modules in initramfs.
>>
>> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
> 
> After some objections over what to build as modules, I'll respin this
> moving a few less things to modules.  In particular, I'll move
> everything to modules except possible rootfs sources (MTD, MMC, etc.)
> 
> I'd still like to see movement towards everything as modules though
> using initramfs, but can save that for another step.

ACK @ initramfs as a future target.

There is a disconnect between what we as developers find useful, what 
customers find useful and what distro providers find useful.

Whatever our flagship defconfig is I think we should probably target the 
"small kernel + initramfs to load modules" method that generic distro 
builders find most useful.  Some testing and how-to documentation on 
using initramfs-tools, yaird and dracut with our kernel would be nice.

BTW, the "performance versus maintenance" argument came up during the 
"fast boot" talk at LPC 2008.  After demonstrating a whizbang 5-second 
startup the Intel guys were vetted pretty thoroughly by the 
Debian/Canonical/Redhat guys on how to make such a configuration easy to 
distribute across boards and architectures and the concensus afterwards 
was that a big-name distributor simply couldn't maintain a per-board 
defconfig, even in the name of performance.

my $0.02,
Mike

> Kevin
> 
> 
>> ---
>>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++------------------
>>  1 files changed, 112 insertions(+), 103 deletions(-)
>>
>> diff --git a/arch/arm/configs/omap3_defconfig b/arch/arm/configs/omap3_defconfig
>> index 2bc80d7..247f191 100644
>> --- a/arch/arm/configs/omap3_defconfig
>> +++ b/arch/arm/configs/omap3_defconfig
>> @@ -1,7 +1,7 @@
>>  #
>>  # Automatically generated make config: don't edit
>>  # Linux kernel version: 2.6.33-rc5
>> -# Tue Jan 26 11:05:31 2010
>> +# Fri Jan 29 16:02:40 2010
>>  #
>>  CONFIG_ARM=y
>>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
>> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>>  #
>>  CONFIG_EXPERIMENTAL=y
>>  CONFIG_BROKEN_ON_SMP=y
>> +CONFIG_LOCK_KERNEL=y
>>  CONFIG_INIT_ENV_ARG_LIMIT=32
>>  CONFIG_LOCALVERSION=""
>>  CONFIG_LOCALVERSION_AUTO=y
>> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>>  # Kernel Performance Events And Counters
>>  #
>>  CONFIG_VM_EVENT_COUNTERS=y
>> +# CONFIG_SLUB_DEBUG is not set
>>  CONFIG_COMPAT_BRK=y
>> -CONFIG_SLAB=y
>> -# CONFIG_SLUB is not set
>> +# CONFIG_SLAB is not set
>> +CONFIG_SLUB=y
>>  # CONFIG_SLOB is not set
>>  CONFIG_PROFILING=y
>>  CONFIG_TRACEPOINTS=y
>> -CONFIG_OPROFILE=y
>> +CONFIG_OPROFILE=m
>>  CONFIG_HAVE_OPROFILE=y
>> -CONFIG_KPROBES=y
>> -CONFIG_KRETPROBES=y
>> +# CONFIG_KPROBES is not set
>>  CONFIG_HAVE_KPROBES=y
>>  CONFIG_HAVE_KRETPROBES=y
>>  CONFIG_HAVE_CLK=y
>> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>>  # CONFIG_GCOV_KERNEL is not set
>>  # CONFIG_SLOW_WORK is not set
>>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
>> -CONFIG_SLABINFO=y
>>  CONFIG_RT_MUTEXES=y
>>  CONFIG_BASE_SMALL=0
>>  CONFIG_MODULES=y
>> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>>  CONFIG_OMAP_MUX_DEBUG=y
>>  CONFIG_OMAP_MUX_WARNINGS=y
>>  CONFIG_OMAP_MCBSP=y
>> -# CONFIG_OMAP_MBOX_FWK is not set
>> +CONFIG_OMAP_MBOX_FWK=m
>>  # CONFIG_OMAP_MPU_TIMER is not set
>>  CONFIG_OMAP_32K_TIMER=y
>>  CONFIG_OMAP_32K_TIMER_HZ=128
>> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>>  # CONFIG_VMSPLIT_2G is not set
>>  # CONFIG_VMSPLIT_1G is not set
>>  CONFIG_PAGE_OFFSET=0xC0000000
>> -CONFIG_PREEMPT_NONE=y
>> +# CONFIG_PREEMPT_NONE is not set
>>  # CONFIG_PREEMPT_VOLUNTARY is not set
>> -# CONFIG_PREEMPT is not set
>> +CONFIG_PREEMPT=y
>>  CONFIG_HZ=128
>>  # CONFIG_THUMB2_KERNEL is not set
>>  CONFIG_AEABI=y
>> -CONFIG_OABI_COMPAT=y
>> +# CONFIG_OABI_COMPAT is not set
>> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>>  # CONFIG_HIGHMEM is not set
>> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>>  #
>>  # CPU Power Management
>>  #
>> -CONFIG_CPU_FREQ=y
>> -CONFIG_CPU_FREQ_TABLE=y
>> -# CONFIG_CPU_FREQ_DEBUG is not set
>> -CONFIG_CPU_FREQ_STAT=y
>> -CONFIG_CPU_FREQ_STAT_DETAILS=y
>> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
>> +# CONFIG_CPU_FREQ is not set
>> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
>> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
>> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
>> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>>  # CONFIG_CPU_IDLE is not set
>>
>>  #
>> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>>  #
>>  CONFIG_PM=y
>>  CONFIG_PM_DEBUG=y
>> -CONFIG_PM_VERBOSE=y
>> +# CONFIG_PM_VERBOSE is not set
>>  CONFIG_CAN_PM_TRACE=y
>>  CONFIG_PM_SLEEP=y
>>  CONFIG_SUSPEND=y
>> -# CONFIG_PM_TEST_SUSPEND is not set
>>  CONFIG_SUSPEND_FREEZER=y
>>  # CONFIG_APM_EMULATION is not set
>>  # CONFIG_PM_RUNTIME is not set
>> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>>  # Network testing
>>  #
>>  # CONFIG_NET_PKTGEN is not set
>> -# CONFIG_NET_TCPPROBE is not set
>>  # CONFIG_NET_DROP_MONITOR is not set
>>  # CONFIG_HAMRADIO is not set
>>  # CONFIG_CAN is not set
>>  # CONFIG_IRDA is not set
>> -CONFIG_BT=y
>> -CONFIG_BT_L2CAP=y
>> -CONFIG_BT_SCO=y
>> -CONFIG_BT_RFCOMM=y
>> +CONFIG_BT=m
>> +CONFIG_BT_L2CAP=m
>> +CONFIG_BT_SCO=m
>> +CONFIG_BT_RFCOMM=m
>>  CONFIG_BT_RFCOMM_TTY=y
>> -CONFIG_BT_BNEP=y
>> +CONFIG_BT_BNEP=m
>>  CONFIG_BT_BNEP_MC_FILTER=y
>>  CONFIG_BT_BNEP_PROTO_FILTER=y
>> -CONFIG_BT_HIDP=y
>> +CONFIG_BT_HIDP=m
>>
>>  #
>>  # Bluetooth device drivers
>>  #
>>  # CONFIG_BT_HCIBTUSB is not set
>>  # CONFIG_BT_HCIBTSDIO is not set
>> -CONFIG_BT_HCIUART=y
>> +CONFIG_BT_HCIUART=m
>>  CONFIG_BT_HCIUART_H4=y
>>  CONFIG_BT_HCIUART_BCSP=y
>>  CONFIG_BT_HCIUART_LL=y
>> -CONFIG_BT_HCIBCM203X=y
>> -CONFIG_BT_HCIBPA10X=y
>> +CONFIG_BT_HCIBCM203X=m
>> +CONFIG_BT_HCIBPA10X=m
>>  # CONFIG_BT_HCIBFUSB is not set
>>  # CONFIG_BT_HCIVHCI is not set
>>  # CONFIG_BT_MRVL is not set
>> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>>  # CONFIG_MTD_PHYSMAP is not set
>>  # CONFIG_MTD_ARM_INTEGRATOR is not set
>> -CONFIG_MTD_OMAP_NOR=y
>>  # CONFIG_MTD_PLATRAM is not set
>>
>>  #
>> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>>  # SCSI device support
>>  #
>>  # CONFIG_RAID_ATTRS is not set
>> -CONFIG_SCSI=y
>> +CONFIG_SCSI=m
>>  CONFIG_SCSI_DMA=y
>>  # CONFIG_SCSI_TGT is not set
>>  # CONFIG_SCSI_NETLINK is not set
>> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>>  #
>>  # SCSI support type (disk, tape, CD-ROM)
>>  #
>> -CONFIG_BLK_DEV_SD=y
>> +CONFIG_BLK_DEV_SD=m
>>  # CONFIG_CHR_DEV_ST is not set
>>  # CONFIG_CHR_DEV_OSST is not set
>>  # CONFIG_BLK_DEV_SR is not set
>> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>>  # CONFIG_DM9000 is not set
>>  # CONFIG_ENC28J60 is not set
>>  # CONFIG_ETHOC is not set
>> -# CONFIG_SMC911X is not set
>> +CONFIG_SMC911X=y
>>  CONFIG_SMSC911X=y
>>  # CONFIG_DNET is not set
>>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
>> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>>  # CONFIG_B43LEGACY is not set
>>  # CONFIG_HOSTAP is not set
>>  # CONFIG_IWM is not set
>> -CONFIG_LIBERTAS=y
>> -CONFIG_LIBERTAS_USB=y
>> -CONFIG_LIBERTAS_SDIO=y
>> +CONFIG_LIBERTAS=m
>> +CONFIG_LIBERTAS_USB=m
>> +CONFIG_LIBERTAS_SDIO=m
>>  # CONFIG_LIBERTAS_SPI is not set
>>  CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_P54_COMMON is not set
>> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_USB_KAWETH is not set
>>  # CONFIG_USB_PEGASUS is not set
>>  # CONFIG_USB_RTL8150 is not set
>> -CONFIG_USB_USBNET=y
>> -CONFIG_USB_NET_AX8817X=y
>> -CONFIG_USB_NET_CDCETHER=y
>> +CONFIG_USB_USBNET=m
>> +CONFIG_USB_NET_AX8817X=m
>> +CONFIG_USB_NET_CDCETHER=m
>>  # CONFIG_USB_NET_CDC_EEM is not set
>>  # CONFIG_USB_NET_DM9601 is not set
>>  # CONFIG_USB_NET_SMSC95XX is not set
>>  # CONFIG_USB_NET_GL620A is not set
>> -CONFIG_USB_NET_NET1080=y
>> +CONFIG_USB_NET_NET1080=m
>>  # CONFIG_USB_NET_PLUSB is not set
>>  # CONFIG_USB_NET_MCS7830 is not set
>>  # CONFIG_USB_NET_RNDIS_HOST is not set
>> -CONFIG_USB_NET_CDC_SUBSET=y
>> +CONFIG_USB_NET_CDC_SUBSET=m
>>  CONFIG_USB_ALI_M5632=y
>>  CONFIG_USB_AN2720=y
>>  CONFIG_USB_BELKIN=y
>>  CONFIG_USB_ARMLINUX=y
>>  CONFIG_USB_EPSON2888=y
>>  CONFIG_USB_KC2190=y
>> -CONFIG_USB_NET_ZAURUS=y
>> +CONFIG_USB_NET_ZAURUS=m
>>  # CONFIG_USB_NET_INT51X1 is not set
>>  # CONFIG_WAN is not set
>>  # CONFIG_PPP is not set
>> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>>  #
>>  # Userland interfaces
>>  #
>> -CONFIG_INPUT_MOUSEDEV=y
>> +CONFIG_INPUT_MOUSEDEV=m
>>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
>> -CONFIG_INPUT_JOYDEV=y
>> +CONFIG_INPUT_JOYDEV=m
>>  CONFIG_INPUT_EVDEV=y
>>  # CONFIG_INPUT_EVBUG is not set
>>
>> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>>  CONFIG_KEYBOARD_TWL4030=y
>>  # CONFIG_KEYBOARD_XTKBD is not set
>>  CONFIG_INPUT_MOUSE=y
>> -CONFIG_MOUSE_PS2=y
>> +CONFIG_MOUSE_PS2=m
>>  CONFIG_MOUSE_PS2_ALPS=y
>>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>>  CONFIG_MOUSE_PS2_SYNAPTICS=y
>> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>>  # CONFIG_INPUT_JOYSTICK is not set
>>  # CONFIG_INPUT_TABLET is not set
>>  CONFIG_INPUT_TOUCHSCREEN=y
>> -CONFIG_TOUCHSCREEN_ADS7846=y
>> +CONFIG_TOUCHSCREEN_ADS7846=m
>>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
>> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>>  #
>>  CONFIG_SERIAL_8250=y
>>  CONFIG_SERIAL_8250_CONSOLE=y
>> -CONFIG_SERIAL_8250_NR_UARTS=32
>> +CONFIG_SERIAL_8250_NR_UARTS=4
>>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>>  CONFIG_SERIAL_8250_EXTENDED=y
>>  CONFIG_SERIAL_8250_MANY_PORTS=y
>> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>>  # CONFIG_LEGACY_PTYS is not set
>>  # CONFIG_IPMI_HANDLER is not set
>> -CONFIG_HW_RANDOM=y
>> +CONFIG_HW_RANDOM=m
>>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
>> -CONFIG_HW_RANDOM_OMAP=y
>> +CONFIG_HW_RANDOM_OMAP=m
>>  # CONFIG_R3964 is not set
>>  # CONFIG_RAW_DRIVER is not set
>>  # CONFIG_TCG_TPM is not set
>> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>>  #
>>  # CONFIG_SPI_BITBANG is not set
>>  # CONFIG_SPI_GPIO is not set
>> -CONFIG_SPI_OMAP24XX=y
>> +CONFIG_SPI_OMAP24XX=m
>>  # CONFIG_SPI_XILINX is not set
>>  # CONFIG_SPI_DESIGNWARE is not set
>>
>> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>>  #
>>  # AC97 GPIO expanders:
>>  #
>> -CONFIG_W1=y
>> +CONFIG_W1=m
>>  CONFIG_W1_CON=y
>>
>>  #
>> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>>  # CONFIG_W1_SLAVE_DS2433 is not set
>>  # CONFIG_W1_SLAVE_DS2760 is not set
>>  # CONFIG_W1_SLAVE_BQ27000 is not set
>> -CONFIG_POWER_SUPPLY=y
>> +CONFIG_POWER_SUPPLY=m
>>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>>  # CONFIG_PDA_POWER is not set
>>  # CONFIG_BATTERY_DS2760 is not set
>>  # CONFIG_BATTERY_DS2782 is not set
>>  # CONFIG_BATTERY_BQ27x00 is not set
>>  # CONFIG_BATTERY_MAX17040 is not set
>> -CONFIG_HWMON=y
>> +CONFIG_HWMON=m
>>  # CONFIG_HWMON_VID is not set
>>  # CONFIG_HWMON_DEBUG_CHIP is not set
>>
>> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>>  # Watchdog Device Drivers
>>  #
>>  # CONFIG_SOFT_WATCHDOG is not set
>> -CONFIG_OMAP_WATCHDOG=y
>> -CONFIG_TWL4030_WATCHDOG=y
>> +CONFIG_OMAP_WATCHDOG=m
>> +CONFIG_TWL4030_WATCHDOG=m
>>
>>  #
>>  # USB-based Watchdog Cards
>> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>>  # CONFIG_TPS65010 is not set
>>  # CONFIG_MENELAUS is not set
>>  CONFIG_TWL4030_CORE=y
>> -# CONFIG_TWL4030_POWER is not set
>> +CONFIG_TWL4030_POWER=y
>>  CONFIG_TWL4030_CODEC=y
>>  # CONFIG_MFD_TMIO is not set
>>  # CONFIG_MFD_T7L66XB is not set
>> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>>  #
>>  # CONFIG_VGASTATE is not set
>>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
>> -CONFIG_FB=y
>> +CONFIG_FB=m
>>  CONFIG_FIRMWARE_EDID=y
>>  # CONFIG_FB_DDC is not set
>>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
>> -CONFIG_FB_CFB_FILLRECT=y
>> -CONFIG_FB_CFB_COPYAREA=y
>> -CONFIG_FB_CFB_IMAGEBLIT=y
>> +CONFIG_FB_CFB_FILLRECT=m
>> +CONFIG_FB_CFB_COPYAREA=m
>> +CONFIG_FB_CFB_IMAGEBLIT=m
>>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>>  # CONFIG_FB_SYS_FILLRECT is not set
>>  # CONFIG_FB_SYS_COPYAREA is not set
>> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>>  # CONFIG_FB_METRONOME is not set
>>  # CONFIG_FB_MB862XX is not set
>>  # CONFIG_FB_BROADSHEET is not set
>> -CONFIG_FB_OMAP=y
>>  CONFIG_FB_OMAP_LCD_VGA=y
>> -# CONFIG_FB_OMAP_031M3R is not set
>> -# CONFIG_FB_OMAP_048M3R is not set
>> -CONFIG_FB_OMAP_079M3R=y
>> -# CONFIG_FB_OMAP_092M9R is not set
>> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
>> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
>> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
>> -# CONFIG_OMAP2_DSS is not set
>> +CONFIG_OMAP2_VRAM=y
>> +CONFIG_OMAP2_VRFB=y
>> +CONFIG_OMAP2_DSS=m
>> +CONFIG_OMAP2_VRAM_SIZE=4
>> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
>> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
>> +# CONFIG_OMAP2_DSS_RFBI is not set
>> +CONFIG_OMAP2_DSS_VENC=y
>> +# CONFIG_OMAP2_DSS_SDI is not set
>> +# CONFIG_OMAP2_DSS_DSI is not set
>> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
>> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
>> +CONFIG_FB_OMAP2=m
>> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
>> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
>> +CONFIG_FB_OMAP2_NUM_FBS=3
>> +
>> +#
>> +# OMAP2/3 Display Device Drivers
>> +#
>> +CONFIG_PANEL_GENERIC=m
>> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
>> -CONFIG_LCD_CLASS_DEVICE=y
>> +CONFIG_LCD_CLASS_DEVICE=m
>>  # CONFIG_LCD_LMS283GF05 is not set
>>  # CONFIG_LCD_LTV350QV is not set
>>  # CONFIG_LCD_ILI9320 is not set
>>  # CONFIG_LCD_TDO24M is not set
>>  # CONFIG_LCD_VGG2432A4 is not set
>> -CONFIG_LCD_PLATFORM=y
>> +CONFIG_LCD_PLATFORM=m
>>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>>  CONFIG_BACKLIGHT_GENERIC=y
>>
>> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>>  #
>>  # CONFIG_VGA_CONSOLE is not set
>>  CONFIG_DUMMY_CONSOLE=y
>> -CONFIG_FRAMEBUFFER_CONSOLE=y
>> +CONFIG_FRAMEBUFFER_CONSOLE=m
>>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>>  CONFIG_FONTS=y
>> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>>  CONFIG_SND=y
>>  CONFIG_SND_TIMER=y
>>  CONFIG_SND_PCM=y
>> -CONFIG_SND_HWDEP=y
>> -CONFIG_SND_RAWMIDI=y
>> +CONFIG_SND_HWDEP=m
>> +CONFIG_SND_RAWMIDI=m
>>  CONFIG_SND_JACK=y
>>  # CONFIG_SND_SEQUENCER is not set
>>  CONFIG_SND_OSSEMUL=y
>> -CONFIG_SND_MIXER_OSS=y
>> -CONFIG_SND_PCM_OSS=y
>> +CONFIG_SND_MIXER_OSS=m
>> +CONFIG_SND_PCM_OSS=m
>>  CONFIG_SND_PCM_OSS_PLUGINS=y
>>  # CONFIG_SND_HRTIMER is not set
>>  # CONFIG_SND_DYNAMIC_MINORS is not set
>> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>>  CONFIG_SND_ARM=y
>>  CONFIG_SND_SPI=y
>>  CONFIG_SND_USB=y
>> -CONFIG_SND_USB_AUDIO=y
>> +CONFIG_SND_USB_AUDIO=m
>>  # CONFIG_SND_USB_CAIAQ is not set
>>  CONFIG_SND_SOC=y
>>  CONFIG_SND_OMAP_SOC=y
>> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>>  #
>>  # USB Input Devices
>>  #
>> -CONFIG_USB_HID=y
>> +CONFIG_USB_HID=m
>>  # CONFIG_HID_PID is not set
>>  # CONFIG_USB_HIDDEV is not set
>>
>>  #
>> +# USB HID Boot Protocol drivers
>> +#
>> +# CONFIG_USB_KBD is not set
>> +# CONFIG_USB_MOUSE is not set
>> +
>> +#
>>  # Special HID drivers
>>  #
>>  # CONFIG_HID_A4TECH is not set
>> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>>  CONFIG_USB_ARCH_HAS_HCD=y
>>  CONFIG_USB_ARCH_HAS_OHCI=y
>>  CONFIG_USB_ARCH_HAS_EHCI=y
>> -CONFIG_USB=y
>> +CONFIG_USB=m
>>  CONFIG_USB_DEBUG=y
>>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>>
>> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>>  CONFIG_USB_OTG=y
>>  # CONFIG_USB_OTG_WHITELIST is not set
>>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
>> -CONFIG_USB_MON=y
>> +CONFIG_USB_MON=m
>>  # CONFIG_USB_WUSB is not set
>>  # CONFIG_USB_WUSB_CBAF is not set
>>
>> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>>  # CONFIG_USB_SL811_HCD is not set
>>  # CONFIG_USB_R8A66597_HCD is not set
>>  # CONFIG_USB_HWA_HCD is not set
>> -CONFIG_USB_MUSB_HDRC=y
>> +CONFIG_USB_MUSB_HDRC=m
>>  CONFIG_USB_MUSB_SOC=y
>>
>>  #
>> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>>  #
>>  # CONFIG_USB_ACM is not set
>>  # CONFIG_USB_PRINTER is not set
>> -CONFIG_USB_WDM=y
>> +CONFIG_USB_WDM=m
>>  # CONFIG_USB_TMC is not set
>>
>>  #
>> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>>  #
>>  # also be needed; see USB_STORAGE Help for more info
>>  #
>> -CONFIG_USB_STORAGE=y
>> +CONFIG_USB_STORAGE=m
>>  # CONFIG_USB_STORAGE_DEBUG is not set
>>  # CONFIG_USB_STORAGE_DATAFAB is not set
>>  # CONFIG_USB_STORAGE_FREECOM is not set
>> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>>  # CONFIG_USB_LD is not set
>>  # CONFIG_USB_TRANCEVIBRATOR is not set
>>  # CONFIG_USB_IOWARRIOR is not set
>> -CONFIG_USB_TEST=y
>> +CONFIG_USB_TEST=m
>>  # CONFIG_USB_ISIGHTFW is not set
>>  # CONFIG_USB_VST is not set
>> -CONFIG_USB_GADGET=y
>> +CONFIG_USB_GADGET=m
>>  CONFIG_USB_GADGET_DEBUG=y
>>  CONFIG_USB_GADGET_DEBUG_FILES=y
>>  CONFIG_USB_GADGET_DEBUG_FS=y
>> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>>  # CONFIG_USB_GPIO_VBUS is not set
>>  # CONFIG_ISP1301_OMAP is not set
>>  # CONFIG_USB_ULPI is not set
>> -CONFIG_TWL4030_USB=y
>> -CONFIG_NOP_USB_XCEIV=y
>> +CONFIG_TWL4030_USB=m
>> +CONFIG_NOP_USB_XCEIV=m
>>  CONFIG_MMC=y
>>  # CONFIG_MMC_DEBUG is not set
>>  CONFIG_MMC_UNSAFE_RESUME=y
>> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>>  #
>>  # MMC/SD/SDIO Card Drivers
>>  #
>> -CONFIG_MMC_BLOCK=y
>> +CONFIG_MMC_BLOCK=m
>>  CONFIG_MMC_BLOCK_BOUNCE=y
>> -CONFIG_SDIO_UART=y
>> +CONFIG_SDIO_UART=m
>>  # CONFIG_MMC_TEST is not set
>>
>>  #
>> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>>  #
>>  # CONFIG_MMC_SDHCI is not set
>>  # CONFIG_MMC_OMAP is not set
>> -CONFIG_MMC_OMAP_HS=y
>> +CONFIG_MMC_OMAP_HS=m
>>  # CONFIG_MMC_AT91 is not set
>>  # CONFIG_MMC_ATMELMCI is not set
>>  # CONFIG_MMC_SPI is not set
>> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>>  #
>>  # CONFIG_ACCESSIBILITY is not set
>>  CONFIG_RTC_LIB=y
>> -CONFIG_RTC_CLASS=y
>> -CONFIG_RTC_HCTOSYS=y
>> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
>> -# CONFIG_RTC_DEBUG is not set
>> +CONFIG_RTC_CLASS=m
>>
>>  #
>>  # RTC interfaces
>> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>>  # CONFIG_RTC_DRV_PCF8583 is not set
>>  # CONFIG_RTC_DRV_M41T80 is not set
>>  # CONFIG_RTC_DRV_BQ32K is not set
>> -CONFIG_RTC_DRV_TWL4030=y
>> +CONFIG_RTC_DRV_TWL4030=m
>>  # CONFIG_RTC_DRV_S35390A is not set
>>  # CONFIG_RTC_DRV_FM3130 is not set
>>  # CONFIG_RTC_DRV_RX8581 is not set
>> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>>  # CONFIG_STAGING is not set
>>
>>  #
>> +# CBUS support
>> +#
>> +# CONFIG_CBUS is not set
>> +
>> +#
>>  # File systems
>>  #
>>  CONFIG_EXT2_FS=y
>> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>>  CONFIG_SCHEDSTATS=y
>>  CONFIG_TIMER_STATS=y
>>  # CONFIG_DEBUG_OBJECTS is not set
>> -# CONFIG_DEBUG_SLAB is not set
>>  # CONFIG_DEBUG_KMEMLEAK is not set
>> +CONFIG_DEBUG_PREEMPT=y
>>  # CONFIG_DEBUG_RT_MUTEXES is not set
>>  # CONFIG_RT_MUTEX_TESTER is not set
>>  CONFIG_DEBUG_SPINLOCK=y
>> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>>  # CONFIG_BOOT_PRINTK_DELAY is not set
>>  # CONFIG_RCU_TORTURE_TEST is not set
>>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
>> -# CONFIG_KPROBES_SANITY_TEST is not set
>>  # CONFIG_BACKTRACE_SELF_TEST is not set
>>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
>> -# CONFIG_LKDTM is not set
>>  # CONFIG_FAULT_INJECTION is not set
>>  # CONFIG_LATENCYTOP is not set
>>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
>> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>>  CONFIG_FTRACE=y
>>  # CONFIG_FUNCTION_TRACER is not set
>>  # CONFIG_IRQSOFF_TRACER is not set
>> +# CONFIG_PREEMPT_TRACER is not set
>>  # CONFIG_SCHED_TRACER is not set
>>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>>  # CONFIG_BOOT_TRACER is not set
>> --
>> 1.6.6
> --
> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html


^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
  2010-02-01 16:09 ` Madhusudhan
@ 2010-02-02 17:44   ` Kevin Hilman
  0 siblings, 0 replies; 12+ messages in thread
From: Kevin Hilman @ 2010-02-02 17:44 UTC (permalink / raw)
  To: Madhusudhan; +Cc: linux-omap

"Madhusudhan" <madhu.cr@ti.com> writes:

>> -----Original Message-----
>> From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-
>> owner@vger.kernel.org] On Behalf Of Kevin Hilman
>> Sent: Friday, January 29, 2010 6:27 PM
>> To: linux-omap@vger.kernel.org
>> Subject: [PATCH] OMAP2/3: update default defconfig, towards smaller kernel
>> 
>> Update omap3_defconfig to work towards a minimal kernel by building
>> most things as modules.  Some drivers that cannot currently be built
>> as modules and need to be fixed:
>> 
>> - MMC: platform code uses MMC core regulator functions directly
>
> The below series posted to LO by Adrian fixes this issue. The core regulator
> calls are moved into the controller driver.
>
> [PATCH V2 0/10] omap_hsmmc changes V2

Madhu,

Thanks for that, I wasn't aware of that.  I just verified that I can now build
the entire MMC stack as modules.  Thanks.

Kevin

>
>
>> - ASoC: drivers call omap_ctrl_[read|write] directly
>> 
>> In addition some additional changes:
>> 
>> - use new SLUB allocator instead of SLAB (increased debugability)
>> - compile with PREEMPT enabled by default
>> - disable OABI_COMPAT.  We should not pretend to support this IMHO
>> - disable CPUfreq: not yet supported in mainline
>> - disable PM_DEBUG_VERBOSE
>> - enable fb/DSS2 as modules
>> - disable Kprobes
>> 
>> zImage size comparison
>> before: 3160272
>> after:  2610108
>> 
>> Some ideas for reducing this further:
>> - fix MMC and ASoC, then build those as modules
>> - disable all the kernel debug features
>> - convert MTD and all flash fs to modules
>> 
>> Then, we should have platform specific initramfs configs so rootfs
>> from flash, MMC, etc. could be done using modules in initramfs.
>> 
>> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
>> ---
>>  arch/arm/configs/omap3_defconfig |  215 ++++++++++++++++++++-------------
>> -----
>>  1 files changed, 112 insertions(+), 103 deletions(-)
>> 
>> diff --git a/arch/arm/configs/omap3_defconfig
>> b/arch/arm/configs/omap3_defconfig
>> index 2bc80d7..247f191 100644
>> --- a/arch/arm/configs/omap3_defconfig
>> +++ b/arch/arm/configs/omap3_defconfig
>> @@ -1,7 +1,7 @@
>>  #
>>  # Automatically generated make config: don't edit
>>  # Linux kernel version: 2.6.33-rc5
>> -# Tue Jan 26 11:05:31 2010
>> +# Fri Jan 29 16:02:40 2010
>>  #
>>  CONFIG_ARM=y
>>  CONFIG_SYS_SUPPORTS_APM_EMULATION=y
>> @@ -32,6 +32,7 @@ CONFIG_CONSTRUCTORS=y
>>  #
>>  CONFIG_EXPERIMENTAL=y
>>  CONFIG_BROKEN_ON_SMP=y
>> +CONFIG_LOCK_KERNEL=y
>>  CONFIG_INIT_ENV_ARG_LIMIT=32
>>  CONFIG_LOCALVERSION=""
>>  CONFIG_LOCALVERSION_AUTO=y
>> @@ -105,16 +106,16 @@ CONFIG_AIO=y
>>  # Kernel Performance Events And Counters
>>  #
>>  CONFIG_VM_EVENT_COUNTERS=y
>> +# CONFIG_SLUB_DEBUG is not set
>>  CONFIG_COMPAT_BRK=y
>> -CONFIG_SLAB=y
>> -# CONFIG_SLUB is not set
>> +# CONFIG_SLAB is not set
>> +CONFIG_SLUB=y
>>  # CONFIG_SLOB is not set
>>  CONFIG_PROFILING=y
>>  CONFIG_TRACEPOINTS=y
>> -CONFIG_OPROFILE=y
>> +CONFIG_OPROFILE=m
>>  CONFIG_HAVE_OPROFILE=y
>> -CONFIG_KPROBES=y
>> -CONFIG_KRETPROBES=y
>> +# CONFIG_KPROBES is not set
>>  CONFIG_HAVE_KPROBES=y
>>  CONFIG_HAVE_KRETPROBES=y
>>  CONFIG_HAVE_CLK=y
>> @@ -125,7 +126,6 @@ CONFIG_HAVE_CLK=y
>>  # CONFIG_GCOV_KERNEL is not set
>>  # CONFIG_SLOW_WORK is not set
>>  CONFIG_HAVE_GENERIC_DMA_COHERENT=y
>> -CONFIG_SLABINFO=y
>>  CONFIG_RT_MUTEXES=y
>>  CONFIG_BASE_SMALL=0
>>  CONFIG_MODULES=y
>> @@ -251,7 +251,7 @@ CONFIG_OMAP_MUX=y
>>  CONFIG_OMAP_MUX_DEBUG=y
>>  CONFIG_OMAP_MUX_WARNINGS=y
>>  CONFIG_OMAP_MCBSP=y
>> -# CONFIG_OMAP_MBOX_FWK is not set
>> +CONFIG_OMAP_MBOX_FWK=m
>>  # CONFIG_OMAP_MPU_TIMER is not set
>>  CONFIG_OMAP_32K_TIMER=y
>>  CONFIG_OMAP_32K_TIMER_HZ=128
>> @@ -354,13 +354,14 @@ CONFIG_VMSPLIT_3G=y
>>  # CONFIG_VMSPLIT_2G is not set
>>  # CONFIG_VMSPLIT_1G is not set
>>  CONFIG_PAGE_OFFSET=0xC0000000
>> -CONFIG_PREEMPT_NONE=y
>> +# CONFIG_PREEMPT_NONE is not set
>>  # CONFIG_PREEMPT_VOLUNTARY is not set
>> -# CONFIG_PREEMPT is not set
>> +CONFIG_PREEMPT=y
>>  CONFIG_HZ=128
>>  # CONFIG_THUMB2_KERNEL is not set
>>  CONFIG_AEABI=y
>> -CONFIG_OABI_COMPAT=y
>> +# CONFIG_OABI_COMPAT is not set
>> +CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
>>  # CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
>>  # CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
>>  # CONFIG_HIGHMEM is not set
>> @@ -394,21 +395,12 @@ CONFIG_ATAGS_PROC=y
>>  #
>>  # CPU Power Management
>>  #
>> -CONFIG_CPU_FREQ=y
>> -CONFIG_CPU_FREQ_TABLE=y
>> -# CONFIG_CPU_FREQ_DEBUG is not set
>> -CONFIG_CPU_FREQ_STAT=y
>> -CONFIG_CPU_FREQ_STAT_DETAILS=y
>> -CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
>> +# CONFIG_CPU_FREQ is not set
>> +# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
>>  # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>> -CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> -# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
>> -CONFIG_CPU_FREQ_GOV_USERSPACE=y
>> -CONFIG_CPU_FREQ_GOV_ONDEMAND=y
>> -# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>>  # CONFIG_CPU_IDLE is not set
>> 
>>  #
>> @@ -439,11 +431,10 @@ CONFIG_BINFMT_MISC=y
>>  #
>>  CONFIG_PM=y
>>  CONFIG_PM_DEBUG=y
>> -CONFIG_PM_VERBOSE=y
>> +# CONFIG_PM_VERBOSE is not set
>>  CONFIG_CAN_PM_TRACE=y
>>  CONFIG_PM_SLEEP=y
>>  CONFIG_SUSPEND=y
>> -# CONFIG_PM_TEST_SUSPEND is not set
>>  CONFIG_SUSPEND_FREEZER=y
>>  # CONFIG_APM_EMULATION is not set
>>  # CONFIG_PM_RUNTIME is not set
>> @@ -539,32 +530,31 @@ CONFIG_NETFILTER_ADVANCED=y
>>  # Network testing
>>  #
>>  # CONFIG_NET_PKTGEN is not set
>> -# CONFIG_NET_TCPPROBE is not set
>>  # CONFIG_NET_DROP_MONITOR is not set
>>  # CONFIG_HAMRADIO is not set
>>  # CONFIG_CAN is not set
>>  # CONFIG_IRDA is not set
>> -CONFIG_BT=y
>> -CONFIG_BT_L2CAP=y
>> -CONFIG_BT_SCO=y
>> -CONFIG_BT_RFCOMM=y
>> +CONFIG_BT=m
>> +CONFIG_BT_L2CAP=m
>> +CONFIG_BT_SCO=m
>> +CONFIG_BT_RFCOMM=m
>>  CONFIG_BT_RFCOMM_TTY=y
>> -CONFIG_BT_BNEP=y
>> +CONFIG_BT_BNEP=m
>>  CONFIG_BT_BNEP_MC_FILTER=y
>>  CONFIG_BT_BNEP_PROTO_FILTER=y
>> -CONFIG_BT_HIDP=y
>> +CONFIG_BT_HIDP=m
>> 
>>  #
>>  # Bluetooth device drivers
>>  #
>>  # CONFIG_BT_HCIBTUSB is not set
>>  # CONFIG_BT_HCIBTSDIO is not set
>> -CONFIG_BT_HCIUART=y
>> +CONFIG_BT_HCIUART=m
>>  CONFIG_BT_HCIUART_H4=y
>>  CONFIG_BT_HCIUART_BCSP=y
>>  CONFIG_BT_HCIUART_LL=y
>> -CONFIG_BT_HCIBCM203X=y
>> -CONFIG_BT_HCIBPA10X=y
>> +CONFIG_BT_HCIBCM203X=m
>> +CONFIG_BT_HCIBPA10X=m
>>  # CONFIG_BT_HCIBFUSB is not set
>>  # CONFIG_BT_HCIVHCI is not set
>>  # CONFIG_BT_MRVL is not set
>> @@ -672,7 +662,6 @@ CONFIG_MTD_CFI_UTIL=y
>>  # CONFIG_MTD_COMPLEX_MAPPINGS is not set
>>  # CONFIG_MTD_PHYSMAP is not set
>>  # CONFIG_MTD_ARM_INTEGRATOR is not set
>> -CONFIG_MTD_OMAP_NOR=y
>>  # CONFIG_MTD_PLATRAM is not set
>> 
>>  #
>> @@ -770,7 +759,7 @@ CONFIG_HAVE_IDE=y
>>  # SCSI device support
>>  #
>>  # CONFIG_RAID_ATTRS is not set
>> -CONFIG_SCSI=y
>> +CONFIG_SCSI=m
>>  CONFIG_SCSI_DMA=y
>>  # CONFIG_SCSI_TGT is not set
>>  # CONFIG_SCSI_NETLINK is not set
>> @@ -779,7 +768,7 @@ CONFIG_SCSI_PROC_FS=y
>>  #
>>  # SCSI support type (disk, tape, CD-ROM)
>>  #
>> -CONFIG_BLK_DEV_SD=y
>> +CONFIG_BLK_DEV_SD=m
>>  # CONFIG_CHR_DEV_ST is not set
>>  # CONFIG_CHR_DEV_OSST is not set
>>  # CONFIG_BLK_DEV_SR is not set
>> @@ -844,7 +833,7 @@ CONFIG_SMC91X=y
>>  # CONFIG_DM9000 is not set
>>  # CONFIG_ENC28J60 is not set
>>  # CONFIG_ETHOC is not set
>> -# CONFIG_SMC911X is not set
>> +CONFIG_SMC911X=y
>>  CONFIG_SMSC911X=y
>>  # CONFIG_DNET is not set
>>  # CONFIG_IBM_NEW_EMAC_ZMII is not set
>> @@ -872,9 +861,9 @@ CONFIG_WLAN=y
>>  # CONFIG_B43LEGACY is not set
>>  # CONFIG_HOSTAP is not set
>>  # CONFIG_IWM is not set
>> -CONFIG_LIBERTAS=y
>> -CONFIG_LIBERTAS_USB=y
>> -CONFIG_LIBERTAS_SDIO=y
>> +CONFIG_LIBERTAS=m
>> +CONFIG_LIBERTAS_USB=m
>> +CONFIG_LIBERTAS_SDIO=m
>>  # CONFIG_LIBERTAS_SPI is not set
>>  CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_P54_COMMON is not set
>> @@ -893,25 +882,25 @@ CONFIG_LIBERTAS_DEBUG=y
>>  # CONFIG_USB_KAWETH is not set
>>  # CONFIG_USB_PEGASUS is not set
>>  # CONFIG_USB_RTL8150 is not set
>> -CONFIG_USB_USBNET=y
>> -CONFIG_USB_NET_AX8817X=y
>> -CONFIG_USB_NET_CDCETHER=y
>> +CONFIG_USB_USBNET=m
>> +CONFIG_USB_NET_AX8817X=m
>> +CONFIG_USB_NET_CDCETHER=m
>>  # CONFIG_USB_NET_CDC_EEM is not set
>>  # CONFIG_USB_NET_DM9601 is not set
>>  # CONFIG_USB_NET_SMSC95XX is not set
>>  # CONFIG_USB_NET_GL620A is not set
>> -CONFIG_USB_NET_NET1080=y
>> +CONFIG_USB_NET_NET1080=m
>>  # CONFIG_USB_NET_PLUSB is not set
>>  # CONFIG_USB_NET_MCS7830 is not set
>>  # CONFIG_USB_NET_RNDIS_HOST is not set
>> -CONFIG_USB_NET_CDC_SUBSET=y
>> +CONFIG_USB_NET_CDC_SUBSET=m
>>  CONFIG_USB_ALI_M5632=y
>>  CONFIG_USB_AN2720=y
>>  CONFIG_USB_BELKIN=y
>>  CONFIG_USB_ARMLINUX=y
>>  CONFIG_USB_EPSON2888=y
>>  CONFIG_USB_KC2190=y
>> -CONFIG_USB_NET_ZAURUS=y
>> +CONFIG_USB_NET_ZAURUS=m
>>  # CONFIG_USB_NET_INT51X1 is not set
>>  # CONFIG_WAN is not set
>>  # CONFIG_PPP is not set
>> @@ -933,11 +922,11 @@ CONFIG_INPUT=y
>>  #
>>  # Userland interfaces
>>  #
>> -CONFIG_INPUT_MOUSEDEV=y
>> +CONFIG_INPUT_MOUSEDEV=m
>>  CONFIG_INPUT_MOUSEDEV_PSAUX=y
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
>>  CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
>> -CONFIG_INPUT_JOYDEV=y
>> +CONFIG_INPUT_JOYDEV=m
>>  CONFIG_INPUT_EVDEV=y
>>  # CONFIG_INPUT_EVBUG is not set
>> 
>> @@ -961,7 +950,7 @@ CONFIG_KEYBOARD_GPIO=y
>>  CONFIG_KEYBOARD_TWL4030=y
>>  # CONFIG_KEYBOARD_XTKBD is not set
>>  CONFIG_INPUT_MOUSE=y
>> -CONFIG_MOUSE_PS2=y
>> +CONFIG_MOUSE_PS2=m
>>  CONFIG_MOUSE_PS2_ALPS=y
>>  CONFIG_MOUSE_PS2_LOGIPS2PP=y
>>  CONFIG_MOUSE_PS2_SYNAPTICS=y
>> @@ -978,7 +967,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y
>>  # CONFIG_INPUT_JOYSTICK is not set
>>  # CONFIG_INPUT_TABLET is not set
>>  CONFIG_INPUT_TOUCHSCREEN=y
>> -CONFIG_TOUCHSCREEN_ADS7846=y
>> +CONFIG_TOUCHSCREEN_ADS7846=m
>>  # CONFIG_TOUCHSCREEN_AD7877 is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_I2C is not set
>>  # CONFIG_TOUCHSCREEN_AD7879_SPI is not set
>> @@ -1037,7 +1026,7 @@ CONFIG_DEVKMEM=y
>>  #
>>  CONFIG_SERIAL_8250=y
>>  CONFIG_SERIAL_8250_CONSOLE=y
>> -CONFIG_SERIAL_8250_NR_UARTS=32
>> +CONFIG_SERIAL_8250_NR_UARTS=4
>>  CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>>  CONFIG_SERIAL_8250_EXTENDED=y
>>  CONFIG_SERIAL_8250_MANY_PORTS=y
>> @@ -1055,9 +1044,9 @@ CONFIG_UNIX98_PTYS=y
>>  # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
>>  # CONFIG_LEGACY_PTYS is not set
>>  # CONFIG_IPMI_HANDLER is not set
>> -CONFIG_HW_RANDOM=y
>> +CONFIG_HW_RANDOM=m
>>  # CONFIG_HW_RANDOM_TIMERIOMEM is not set
>> -CONFIG_HW_RANDOM_OMAP=y
>> +CONFIG_HW_RANDOM_OMAP=m
>>  # CONFIG_R3964 is not set
>>  # CONFIG_RAW_DRIVER is not set
>>  # CONFIG_TCG_TPM is not set
>> @@ -1110,7 +1099,7 @@ CONFIG_SPI_MASTER=y
>>  #
>>  # CONFIG_SPI_BITBANG is not set
>>  # CONFIG_SPI_GPIO is not set
>> -CONFIG_SPI_OMAP24XX=y
>> +CONFIG_SPI_OMAP24XX=m
>>  # CONFIG_SPI_XILINX is not set
>>  # CONFIG_SPI_DESIGNWARE is not set
>> 
>> @@ -1156,7 +1145,7 @@ CONFIG_GPIO_TWL4030=y
>>  #
>>  # AC97 GPIO expanders:
>>  #
>> -CONFIG_W1=y
>> +CONFIG_W1=m
>>  CONFIG_W1_CON=y
>> 
>>  #
>> @@ -1177,14 +1166,14 @@ CONFIG_W1_CON=y
>>  # CONFIG_W1_SLAVE_DS2433 is not set
>>  # CONFIG_W1_SLAVE_DS2760 is not set
>>  # CONFIG_W1_SLAVE_BQ27000 is not set
>> -CONFIG_POWER_SUPPLY=y
>> +CONFIG_POWER_SUPPLY=m
>>  # CONFIG_POWER_SUPPLY_DEBUG is not set
>>  # CONFIG_PDA_POWER is not set
>>  # CONFIG_BATTERY_DS2760 is not set
>>  # CONFIG_BATTERY_DS2782 is not set
>>  # CONFIG_BATTERY_BQ27x00 is not set
>>  # CONFIG_BATTERY_MAX17040 is not set
>> -CONFIG_HWMON=y
>> +CONFIG_HWMON=m
>>  # CONFIG_HWMON_VID is not set
>>  # CONFIG_HWMON_DEBUG_CHIP is not set
>> 
>> @@ -1264,8 +1253,8 @@ CONFIG_WATCHDOG_NOWAYOUT=y
>>  # Watchdog Device Drivers
>>  #
>>  # CONFIG_SOFT_WATCHDOG is not set
>> -CONFIG_OMAP_WATCHDOG=y
>> -CONFIG_TWL4030_WATCHDOG=y
>> +CONFIG_OMAP_WATCHDOG=m
>> +CONFIG_TWL4030_WATCHDOG=m
>> 
>>  #
>>  # USB-based Watchdog Cards
>> @@ -1289,7 +1278,7 @@ CONFIG_MFD_CORE=y
>>  # CONFIG_TPS65010 is not set
>>  # CONFIG_MENELAUS is not set
>>  CONFIG_TWL4030_CORE=y
>> -# CONFIG_TWL4030_POWER is not set
>> +CONFIG_TWL4030_POWER=y
>>  CONFIG_TWL4030_CODEC=y
>>  # CONFIG_MFD_TMIO is not set
>>  # CONFIG_MFD_T7L66XB is not set
>> @@ -1325,13 +1314,13 @@ CONFIG_REGULATOR_TWL4030=y
>>  #
>>  # CONFIG_VGASTATE is not set
>>  # CONFIG_VIDEO_OUTPUT_CONTROL is not set
>> -CONFIG_FB=y
>> +CONFIG_FB=m
>>  CONFIG_FIRMWARE_EDID=y
>>  # CONFIG_FB_DDC is not set
>>  # CONFIG_FB_BOOT_VESA_SUPPORT is not set
>> -CONFIG_FB_CFB_FILLRECT=y
>> -CONFIG_FB_CFB_COPYAREA=y
>> -CONFIG_FB_CFB_IMAGEBLIT=y
>> +CONFIG_FB_CFB_FILLRECT=m
>> +CONFIG_FB_CFB_COPYAREA=m
>> +CONFIG_FB_CFB_IMAGEBLIT=m
>>  # CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
>>  # CONFIG_FB_SYS_FILLRECT is not set
>>  # CONFIG_FB_SYS_COPYAREA is not set
>> @@ -1354,25 +1343,38 @@ CONFIG_FB_TILEBLITTING=y
>>  # CONFIG_FB_METRONOME is not set
>>  # CONFIG_FB_MB862XX is not set
>>  # CONFIG_FB_BROADSHEET is not set
>> -CONFIG_FB_OMAP=y
>>  CONFIG_FB_OMAP_LCD_VGA=y
>> -# CONFIG_FB_OMAP_031M3R is not set
>> -# CONFIG_FB_OMAP_048M3R is not set
>> -CONFIG_FB_OMAP_079M3R=y
>> -# CONFIG_FB_OMAP_092M9R is not set
>> -# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
>> -# CONFIG_FB_OMAP_LCD_MIPID is not set
>>  # CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
>> -CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
>> -# CONFIG_OMAP2_DSS is not set
>> +CONFIG_OMAP2_VRAM=y
>> +CONFIG_OMAP2_VRFB=y
>> +CONFIG_OMAP2_DSS=m
>> +CONFIG_OMAP2_VRAM_SIZE=4
>> +CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
>> +# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
>> +# CONFIG_OMAP2_DSS_RFBI is not set
>> +CONFIG_OMAP2_DSS_VENC=y
>> +# CONFIG_OMAP2_DSS_SDI is not set
>> +# CONFIG_OMAP2_DSS_DSI is not set
>> +# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
>> +CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
>> +CONFIG_FB_OMAP2=m
>> +CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
>> +# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
>> +CONFIG_FB_OMAP2_NUM_FBS=3
>> +
>> +#
>> +# OMAP2/3 Display Device Drivers
>> +#
>> +CONFIG_PANEL_GENERIC=m
>> +CONFIG_PANEL_SHARP_LS037V7DW01=m
>>  CONFIG_BACKLIGHT_LCD_SUPPORT=y
>> -CONFIG_LCD_CLASS_DEVICE=y
>> +CONFIG_LCD_CLASS_DEVICE=m
>>  # CONFIG_LCD_LMS283GF05 is not set
>>  # CONFIG_LCD_LTV350QV is not set
>>  # CONFIG_LCD_ILI9320 is not set
>>  # CONFIG_LCD_TDO24M is not set
>>  # CONFIG_LCD_VGG2432A4 is not set
>> -CONFIG_LCD_PLATFORM=y
>> +CONFIG_LCD_PLATFORM=m
>>  CONFIG_BACKLIGHT_CLASS_DEVICE=y
>>  CONFIG_BACKLIGHT_GENERIC=y
>> 
>> @@ -1390,7 +1392,7 @@ CONFIG_DISPLAY_SUPPORT=y
>>  #
>>  # CONFIG_VGA_CONSOLE is not set
>>  CONFIG_DUMMY_CONSOLE=y
>> -CONFIG_FRAMEBUFFER_CONSOLE=y
>> +CONFIG_FRAMEBUFFER_CONSOLE=m
>>  # CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
>>  CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
>>  CONFIG_FONTS=y
>> @@ -1414,13 +1416,13 @@ CONFIG_SOUND_OSS_CORE_PRECLAIM=y
>>  CONFIG_SND=y
>>  CONFIG_SND_TIMER=y
>>  CONFIG_SND_PCM=y
>> -CONFIG_SND_HWDEP=y
>> -CONFIG_SND_RAWMIDI=y
>> +CONFIG_SND_HWDEP=m
>> +CONFIG_SND_RAWMIDI=m
>>  CONFIG_SND_JACK=y
>>  # CONFIG_SND_SEQUENCER is not set
>>  CONFIG_SND_OSSEMUL=y
>> -CONFIG_SND_MIXER_OSS=y
>> -CONFIG_SND_PCM_OSS=y
>> +CONFIG_SND_MIXER_OSS=m
>> +CONFIG_SND_PCM_OSS=m
>>  CONFIG_SND_PCM_OSS_PLUGINS=y
>>  # CONFIG_SND_HRTIMER is not set
>>  # CONFIG_SND_DYNAMIC_MINORS is not set
>> @@ -1443,7 +1445,7 @@ CONFIG_SND_DRIVERS=y
>>  CONFIG_SND_ARM=y
>>  CONFIG_SND_SPI=y
>>  CONFIG_SND_USB=y
>> -CONFIG_SND_USB_AUDIO=y
>> +CONFIG_SND_USB_AUDIO=m
>>  # CONFIG_SND_USB_CAIAQ is not set
>>  CONFIG_SND_SOC=y
>>  CONFIG_SND_OMAP_SOC=y
>> @@ -1468,11 +1470,17 @@ CONFIG_HID=y
>>  #
>>  # USB Input Devices
>>  #
>> -CONFIG_USB_HID=y
>> +CONFIG_USB_HID=m
>>  # CONFIG_HID_PID is not set
>>  # CONFIG_USB_HIDDEV is not set
>> 
>>  #
>> +# USB HID Boot Protocol drivers
>> +#
>> +# CONFIG_USB_KBD is not set
>> +# CONFIG_USB_MOUSE is not set
>> +
>> +#
>>  # Special HID drivers
>>  #
>>  # CONFIG_HID_A4TECH is not set
>> @@ -1506,7 +1514,7 @@ CONFIG_USB_SUPPORT=y
>>  CONFIG_USB_ARCH_HAS_HCD=y
>>  CONFIG_USB_ARCH_HAS_OHCI=y
>>  CONFIG_USB_ARCH_HAS_EHCI=y
>> -CONFIG_USB=y
>> +CONFIG_USB=m
>>  CONFIG_USB_DEBUG=y
>>  CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
>> 
>> @@ -1520,7 +1528,7 @@ CONFIG_USB_SUSPEND=y
>>  CONFIG_USB_OTG=y
>>  # CONFIG_USB_OTG_WHITELIST is not set
>>  # CONFIG_USB_OTG_BLACKLIST_HUB is not set
>> -CONFIG_USB_MON=y
>> +CONFIG_USB_MON=m
>>  # CONFIG_USB_WUSB is not set
>>  # CONFIG_USB_WUSB_CBAF is not set
>> 
>> @@ -1537,7 +1545,7 @@ CONFIG_USB_MON=y
>>  # CONFIG_USB_SL811_HCD is not set
>>  # CONFIG_USB_R8A66597_HCD is not set
>>  # CONFIG_USB_HWA_HCD is not set
>> -CONFIG_USB_MUSB_HDRC=y
>> +CONFIG_USB_MUSB_HDRC=m
>>  CONFIG_USB_MUSB_SOC=y
>> 
>>  #
>> @@ -1558,7 +1566,7 @@ CONFIG_USB_MUSB_DEBUG=y
>>  #
>>  # CONFIG_USB_ACM is not set
>>  # CONFIG_USB_PRINTER is not set
>> -CONFIG_USB_WDM=y
>> +CONFIG_USB_WDM=m
>>  # CONFIG_USB_TMC is not set
>> 
>>  #
>> @@ -1568,7 +1576,7 @@ CONFIG_USB_WDM=y
>>  #
>>  # also be needed; see USB_STORAGE Help for more info
>>  #
>> -CONFIG_USB_STORAGE=y
>> +CONFIG_USB_STORAGE=m
>>  # CONFIG_USB_STORAGE_DEBUG is not set
>>  # CONFIG_USB_STORAGE_DATAFAB is not set
>>  # CONFIG_USB_STORAGE_FREECOM is not set
>> @@ -1615,10 +1623,10 @@ CONFIG_USB_LIBUSUAL=y
>>  # CONFIG_USB_LD is not set
>>  # CONFIG_USB_TRANCEVIBRATOR is not set
>>  # CONFIG_USB_IOWARRIOR is not set
>> -CONFIG_USB_TEST=y
>> +CONFIG_USB_TEST=m
>>  # CONFIG_USB_ISIGHTFW is not set
>>  # CONFIG_USB_VST is not set
>> -CONFIG_USB_GADGET=y
>> +CONFIG_USB_GADGET=m
>>  CONFIG_USB_GADGET_DEBUG=y
>>  CONFIG_USB_GADGET_DEBUG_FILES=y
>>  CONFIG_USB_GADGET_DEBUG_FS=y
>> @@ -1664,8 +1672,8 @@ CONFIG_USB_OTG_UTILS=y
>>  # CONFIG_USB_GPIO_VBUS is not set
>>  # CONFIG_ISP1301_OMAP is not set
>>  # CONFIG_USB_ULPI is not set
>> -CONFIG_TWL4030_USB=y
>> -CONFIG_NOP_USB_XCEIV=y
>> +CONFIG_TWL4030_USB=m
>> +CONFIG_NOP_USB_XCEIV=m
>>  CONFIG_MMC=y
>>  # CONFIG_MMC_DEBUG is not set
>>  CONFIG_MMC_UNSAFE_RESUME=y
>> @@ -1673,9 +1681,9 @@ CONFIG_MMC_UNSAFE_RESUME=y
>>  #
>>  # MMC/SD/SDIO Card Drivers
>>  #
>> -CONFIG_MMC_BLOCK=y
>> +CONFIG_MMC_BLOCK=m
>>  CONFIG_MMC_BLOCK_BOUNCE=y
>> -CONFIG_SDIO_UART=y
>> +CONFIG_SDIO_UART=m
>>  # CONFIG_MMC_TEST is not set
>> 
>>  #
>> @@ -1683,7 +1691,7 @@ CONFIG_SDIO_UART=y
>>  #
>>  # CONFIG_MMC_SDHCI is not set
>>  # CONFIG_MMC_OMAP is not set
>> -CONFIG_MMC_OMAP_HS=y
>> +CONFIG_MMC_OMAP_HS=m
>>  # CONFIG_MMC_AT91 is not set
>>  # CONFIG_MMC_ATMELMCI is not set
>>  # CONFIG_MMC_SPI is not set
>> @@ -1719,10 +1727,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
>>  #
>>  # CONFIG_ACCESSIBILITY is not set
>>  CONFIG_RTC_LIB=y
>> -CONFIG_RTC_CLASS=y
>> -CONFIG_RTC_HCTOSYS=y
>> -CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
>> -# CONFIG_RTC_DEBUG is not set
>> +CONFIG_RTC_CLASS=m
>> 
>>  #
>>  # RTC interfaces
>> @@ -1747,7 +1752,7 @@ CONFIG_RTC_INTF_DEV=y
>>  # CONFIG_RTC_DRV_PCF8583 is not set
>>  # CONFIG_RTC_DRV_M41T80 is not set
>>  # CONFIG_RTC_DRV_BQ32K is not set
>> -CONFIG_RTC_DRV_TWL4030=y
>> +CONFIG_RTC_DRV_TWL4030=m
>>  # CONFIG_RTC_DRV_S35390A is not set
>>  # CONFIG_RTC_DRV_FM3130 is not set
>>  # CONFIG_RTC_DRV_RX8581 is not set
>> @@ -1795,6 +1800,11 @@ CONFIG_RTC_DRV_TWL4030=y
>>  # CONFIG_STAGING is not set
>> 
>>  #
>> +# CBUS support
>> +#
>> +# CONFIG_CBUS is not set
>> +
>> +#
>>  # File systems
>>  #
>>  CONFIG_EXT2_FS=y
>> @@ -2012,8 +2022,8 @@ CONFIG_SCHED_DEBUG=y
>>  CONFIG_SCHEDSTATS=y
>>  CONFIG_TIMER_STATS=y
>>  # CONFIG_DEBUG_OBJECTS is not set
>> -# CONFIG_DEBUG_SLAB is not set
>>  # CONFIG_DEBUG_KMEMLEAK is not set
>> +CONFIG_DEBUG_PREEMPT=y
>>  # CONFIG_DEBUG_RT_MUTEXES is not set
>>  # CONFIG_RT_MUTEX_TESTER is not set
>>  CONFIG_DEBUG_SPINLOCK=y
>> @@ -2040,11 +2050,9 @@ CONFIG_DEBUG_INFO=y
>>  # CONFIG_BOOT_PRINTK_DELAY is not set
>>  # CONFIG_RCU_TORTURE_TEST is not set
>>  # CONFIG_RCU_CPU_STALL_DETECTOR is not set
>> -# CONFIG_KPROBES_SANITY_TEST is not set
>>  # CONFIG_BACKTRACE_SELF_TEST is not set
>>  # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
>>  # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
>> -# CONFIG_LKDTM is not set
>>  # CONFIG_FAULT_INJECTION is not set
>>  # CONFIG_LATENCYTOP is not set
>>  # CONFIG_SYSCTL_SYSCALL_CHECK is not set
>> @@ -2060,6 +2068,7 @@ CONFIG_TRACING_SUPPORT=y
>>  CONFIG_FTRACE=y
>>  # CONFIG_FUNCTION_TRACER is not set
>>  # CONFIG_IRQSOFF_TRACER is not set
>> +# CONFIG_PREEMPT_TRACER is not set
>>  # CONFIG_SCHED_TRACER is not set
>>  # CONFIG_ENABLE_DEFAULT_TRACERS is not set
>>  # CONFIG_BOOT_TRACER is not set
>> --
>> 1.6.6
>> 
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-omap" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2010-02-02 17:44 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-01-30  0:26 [PATCH] OMAP2/3: update default defconfig, towards smaller kernel Kevin Hilman
2010-01-30  2:01 ` Nishanth Menon
2010-01-30 10:25   ` Koen Kooi
2010-02-01 17:32   ` Kevin Hilman
2010-02-01 16:09 ` Madhusudhan
2010-02-02 17:44   ` Kevin Hilman
2010-02-01 19:49 ` Olof Johansson
2010-02-01 20:20   ` Kevin Hilman
2010-02-01 20:37     ` Olof Johansson
2010-02-01 20:52 ` Kevin Hilman
2010-02-01 23:03   ` Mike Turquette
2010-02-01 21:39 ` Madhusudhan

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